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+{"textType":"Zeitung: Tageszeitung","textColumn":"POLITIK","docSigle":"BZK_D59","reference":"Neues Deutschland, [Tageszeitung], 19.02.1959, Jg. 14, Berliner Ausgabe, S. 7. - Sachgebiet: Politik, Originalressort: POLITIK; Saragat-Partei zerfällt","pubPlace":"Berlin","textClass":"politik ausland","corpusTitle":"Bonner Zeitungskorpus","language":"de","version":"0.03","data":{"tokenSource":"opennlp#tokens","foundries":"base base/paragraphs base/sentences corenlp corenlp/constituency corenlp/morpho corenlp/namedentities corenlp/sentences glemm glemm/morpho mate mate/morpho opennlp opennlp/morpho opennlp/sentences treetagger treetagger/morpho treetagger/sentences","layerInfos":"base/s=spans corenlp/c=spans corenlp/ne=tokens corenlp/p=tokens corenlp/s=spans glemm/l=tokens mate/l=tokens mate/m=tokens mate/p=tokens opennlp/p=tokens opennlp/s=spans tt/l=tokens tt/p=tokens tt/s=spans","text":"Saragat-Partei zerfällt Rom (ADN) die von dem Rechtssozialisten Saragat geführte Sozialdemokratische Partei Italiens fällt immer mehr auseinander, nachdem vor einiger Zeit mehrere prominente Mitglieder ihren Austritt erklärt und unter dem Namen \"Einheitsbewegung der sozialistischen Initiative\" eine neue politische Gruppierung ins Leben gerufen hatten. Pressemeldungen zufolge haben sich in den letzten Tagen acht Provinzorganisationen der Sozialdemokratischen Partei der \"Einheitsbewegung\" angeschlossen. zu ihnen gehören die Organisation von Trient, Bozen und Triest. die Provinzorganisationen Treviso, Bergamo und Sondrio beschlossen mit überwältigender Mehrheit den Austritt aus der Saragat-Partei. von den 98 Jugendorganisationen der Sozialdemokratischen Partei haben sich inzwischen 90 der neuen \"Einheitsbewegung\" 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Deutschland, Jahrgangsquerschnitt 1959","textSigle":"BZK_D59.00089","creationDate":"19590219","title":"Saragat-Partei zerfällt","pubDate":"19590219","textTypeRef":"Tageszeitung"}
\ No newline at end of file
diff --git a/lib/KorAP/Field/MultiTermToken.pm b/lib/KorAP/Field/MultiTermToken.pm
index e658f0d..4884e7f 100644
--- a/lib/KorAP/Field/MultiTermToken.pm
+++ b/lib/KorAP/Field/MultiTermToken.pm
@@ -109,6 +109,11 @@
     # Both are attributes
     # Order attributes by reference id
     if (index($a->[5], '@:') == 0 && index($b->[5], '@:') == 0) {
+
+
+#      use Data::Dumper;
+#      die Dumper $a;
+
       my ($a_id) = ($a->[0] =~ m/^<s>(\d+)/);
       my ($b_id) = ($b->[0] =~ m/^<s>(\d+)/);
       if ($a_id > $b_id) {
diff --git a/lib/KorAP/Index/Mate/Morpho2.pm b/lib/KorAP/Index/Mate/MorphoAttr.pm
similarity index 68%
rename from lib/KorAP/Index/Mate/Morpho2.pm
rename to lib/KorAP/Index/Mate/MorphoAttr.pm
index e032f2f..74ba26b 100644
--- a/lib/KorAP/Index/Mate/Morpho2.pm
+++ b/lib/KorAP/Index/Mate/MorphoAttr.pm
@@ -1,4 +1,4 @@
-package KorAP::Index::Mate::Morpho;
+package KorAP::Index::Mate::MorphoAttr;
 use KorAP::Index::Base;
 
 # This attaches morphological information as attributes to the pos
@@ -15,11 +15,12 @@
 
       my $content = $token->hash->{fs}->{f};
 
-      my ($found, $pos, $msd, $id);
+      my ($found, $pos, $msd, $tui);
 
       my $capital = 0;
 
       foreach my $f (@{$content->{fs}->{f}}) {
+
 	#pos
 	if (($f->{-name} eq 'pos') && ($found = $f->{'#text'})) {
 	  $pos = $found;
@@ -37,18 +38,32 @@
 		 ($found = $f->{'#text'}) &&
 		   ($found ne '_')) {
 	  $msd = $found;
-	  $id = $mtt->id_counter;
+	  $tui = $mtt->id_counter;
 	};
       };
 
-      $mtt->add(term => 'mate/m:' . $pos . ($id ? ('$<s>' . $id) : ''));
+      my %term = (
+	term => 'mate/p:' . $pos
+      );
+
+      # There are attributes needed
+      if ($tui) {
+	$term{pti} = 128;
+	$term{payload} = '<s>' . $tui
+      };;
+
+      $mtt->add(%term);
 
       # MSD
       if ($msd) {
 	foreach (split '\|', $msd) {
 	  my ($x, $y) = split "=", $_;
 	  # case, tense, number, mood, person, degree, gender
-	  $mtt->add(term => '@:' . $x . ($y ? '=' . $y : '') . '$<s>' . $id);
+	  $mtt->add(
+	    term => '@:' . $x . ($y ? '=' . $y : ''),
+	    pti => 16,
+	    payload => '<s>' . $tui
+	  );
 	};
       };
     }) or return;
@@ -57,7 +72,7 @@
 };
 
 sub layer_info {
-    ['mate/l=tokens', 'mate/m=tokens']
+    ['mate/l=tokens', 'mate/p=tokens']
 };
 
 1;
diff --git a/lib/KorAP/Index/TreeTagger/Morpho.pm b/lib/KorAP/Index/TreeTagger/Morpho.pm
index 989728b..487b78a 100644
--- a/lib/KorAP/Index/TreeTagger/Morpho.pm
+++ b/lib/KorAP/Index/TreeTagger/Morpho.pm
@@ -42,7 +42,10 @@
 	    my %term = (
 	      term => 'tt/l:' . $found
 	    );
-	    $term{payload} = '<b>' . $certainty if $certainty;
+	    if ($certainty) {
+	      $term{pti} = 129;
+	      $term{payload} = '<b>' . $certainty;
+	    };
 	    $mtt->add(%term);
 	  };
 
@@ -51,7 +54,10 @@
 	    my %term = (
 	      term => 'tt/p:' . $found
 	    );
-	    $term{payload} = '<b>' . $certainty if $certainty;
+	    if ($certainty) {
+	      $term{pti} = 129;
+	      $term{payload} = '<b>' . $certainty;
+	    };
 	    $mtt->add(%term);
 	  };
 	};
diff --git a/lib/KorAP/Index/TreeTagger/Sentences.pm b/lib/KorAP/Index/TreeTagger/Sentences.pm
index 37b49e0..1d62d9f 100644
--- a/lib/KorAP/Index/TreeTagger/Sentences.pm
+++ b/lib/KorAP/Index/TreeTagger/Sentences.pm
@@ -16,7 +16,8 @@
 	o_start => $span->o_start,
 	o_end => $span->o_end,
 	p_end => $span->p_end,
-	payload => '<b>2' # Depth is 2 by default t/p/s
+	pti => 64,
+	payload => '<b>0' # Could be 2 as well t/p/s
       );
       $i++;
     }
diff --git a/t/index/corpus/doc/text/mate/dependency.xml b/t/index/corpus/doc/text/mate/dependency.xml
new file mode 100644
index 0000000..eeb1186
--- /dev/null
+++ b/t/index/corpus/doc/text/mate/dependency.xml
@@ -0,0 +1,139 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<?xml-model href="span.rng" type="application/xml" schematypens="http://relaxng.org/ns/structure/1.0"?>
+<layer docid="Corpus_Doc.0001"
+       version="KorA-0.2"
+       xmlns="http://ids-mannheim.de/ns/KorA">
+  <spanList>
+    <span from="0"
+          to="3">
+      <rel label="MO">
+        <span from="31"
+              to="35" />
+      </rel>
+    </span>
+    <span from="4"
+          to="11">
+      <rel label="NK">
+        <span from="24"
+              to="30" />
+      </rel>
+    </span>
+    <span from="12"
+          to="23">
+      <rel label="NK">
+        <span from="24"
+              to="30" />
+      </rel>
+    </span>
+    <span from="24"
+          to="30">
+      <rel label="NK">
+        <span from="0"
+              to="3" />
+      </rel>
+    </span>
+    <span from="31"
+          to="35">
+      <rel label="--"
+           type="unary" />
+    </span>
+    <span from="36"
+          to="39">
+      <rel label="NK">
+        <span from="40"
+              to="47" />
+      </rel>
+    </span>
+    <span from="40"
+          to="47">
+      <rel label="SB">
+        <span from="31"
+              to="35" />
+      </rel>
+    </span>
+    <span from="48"
+          to="51">
+      <rel label="NK">
+        <span from="52"
+              to="63" />
+      </rel>
+    </span>
+    <span from="52"
+          to="63">
+      <rel label="AG">
+        <span from="40"
+              to="47" />
+      </rel>
+    </span>
+    <span from="64"
+          to="73">
+      <rel label="NK">
+        <span from="52"
+              to="63" />
+      </rel>
+    </span>
+    <span from="74"
+          to="77">
+      <rel label="SVP">
+        <span from="31"
+              to="35" />
+      </rel>
+    </span>
+    <span from="77"
+          to="78">
+      <rel label="--">
+        <span from="74"
+              to="77" />
+      </rel>
+    </span>
+    <span from="79"
+          to="84">
+      <rel label="CP">
+        <span from="124"
+              to="128" />
+      </rel>
+    </span>
+    <span from="85"
+          to="88">
+      <rel label="NK">
+        <span from="89"
+              to="96" />
+      </rel>
+    </span>
+    <span from="89"
+          to="96">
+      <rel label="SB">
+        <span from="124"
+              to="128" />
+      </rel>
+    </span>
+    <span from="97"
+          to="101">
+      <rel label="OA">
+        <span from="112"
+              to="123" />
+      </rel>
+    </span>
+    <span from="102"
+          to="111">
+      <rel label="NK">
+        <span from="97"
+              to="101" />
+      </rel>
+    </span>
+    <span from="112"
+          to="123">
+      <rel label="OC">
+        <span from="124"
+              to="128" />
+      </rel>
+    </span>
+    <span from="124"
+          to="128">
+      <rel label="MO">
+        <span from="31"
+              to="35" />
+      </rel>
+    </span>
+  </spanList>
+</layer>
diff --git a/t/index/corpus/doc/text/mate/morpho.xml b/t/index/corpus/doc/text/mate/morpho.xml
new file mode 100644
index 0000000..bf1a1a9
--- /dev/null
+++ b/t/index/corpus/doc/text/mate/morpho.xml
@@ -0,0 +1,214 @@
+<?xml version="1.0" encoding="UTF-8"?><?xml-model href="span.rng" type="application/xml" schematypens="http://relaxng.org/ns/structure/1.0"?>
+<layer docid="Corpus_Doc.0001" version="KorAP-0.4" xmlns="http://ids-mannheim.de/ns/KorAP">
+  <spanList>
+    <span from="0" id="s2_1" to="3">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+	<f name="lex">
+	  <fs>
+	    <f name="lemma">zu</f>
+	    <f name="pos">APPRART</f>
+	    <f name="msd">case=dat|number=sg|gender=neut</f>
+	  </fs>
+	</f>
+      </fs>
+    </span>
+    <span from="4" id="s2_2" to="11">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+	<f name="lex">
+	  <fs>
+	    <f name="lemma">letzter</f>
+	    <f name="pos">ADJA</f>
+	    <f name="msd">case=dat|number=sg|gender=neut|degree=pos</f>
+	  </fs>
+	</f>
+      </fs>
+    </span>
+    <span from="12" id="s2_3" to="23">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+	<f name="lex">
+	  <fs>
+	    <f name="lemma">kulturell</f>
+	    <f name="pos">ADJA</f>
+	    <f name="msd">case=gen|number=sg|gender=neut|degree=pos</f>
+	  </fs>
+	</f>
+      </fs>
+    </span>
+    <span from="24" id="s2_4" to="30">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+	<f name="lex">
+	  <fs>
+	    <f name="lemma">anlass</f>
+	    <f name="pos">NN</f>
+	    <f name="msd">case=gen|number=sg|gender=neut</f>
+	  </fs>
+	</f>
+      </fs>
+    </span>
+    <span from="31" id="s2_5" to="35">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+	<f name="lex">
+	  <fs>
+	    <f name="lemma">laden</f>
+	    <f name="pos">VVFIN</f>
+	    <f name="msd">number=sg|person=3|tense=pres|mood=ind</f>
+	  </fs>
+	</f>
+      </fs>
+    </span>
+    <span from="36" id="s2_6" to="39">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+	<f name="lex">
+	  <fs>
+	    <f name="lemma">der</f>
+	    <f name="pos">ART</f>
+	    <f name="msd">case=acc|number=sg|gender=fem</f>
+	  </fs>
+	</f>
+      </fs>
+    </span>
+    <span from="40" id="s2_7" to="47">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+	<f name="lex">
+	  <fs>
+	    <f name="lemma">leitung</f>
+	    <f name="pos">NN</f>
+	    <f name="msd">case=acc|number=sg|gender=fem</f>
+	  </fs>
+	</f>
+      </fs>
+    </span>
+    <span from="48" id="s2_8" to="51">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+	<f name="lex">
+	  <fs>
+	    <f name="lemma">der</f>
+	    <f name="pos">ART</f>
+	    <f name="msd">case=gen|number=sg|gender=neut</f>
+	  </fs>
+	</f>
+      </fs>
+    </span>
+    <span from="52" id="s2_9" to="63">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+	<f name="lex">
+	  <fs>
+	    <f name="lemma">schulheime</f>
+	    <f name="pos">NN</f>
+	    <f name="msd">case=gen|number=sg|gender=neut</f>
+	  </fs>
+	</f>
+      </fs>
+    </span>
+    <span from="64" id="s2_10" to="73">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+	<f name="lex">
+	  <fs>
+	    <f name="lemma">hofbergli</f>
+	    <f name="pos">NE</f>
+	    <f name="msd">case=nom|number=sg|gender=*</f>
+	  </fs>
+	</f>
+      </fs>
+    </span>
+    <span from="74" id="s2_11" to="77">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+	<f name="lex">
+	  <fs>
+	    <f name="lemma">ein</f>
+	    <f name="pos">PTKVZ</f>
+	    <f name="msd">_</f>
+	  </fs>
+	</f>
+      </fs>
+    </span>
+    <span from="77" id="s2_12" to="78">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+	<f name="lex">
+	  <fs>
+	    <f name="lemma">--</f>
+	    <f name="pos">$,</f>
+	    <f name="msd">_</f>
+	  </fs>
+	</f>
+      </fs>
+    </span>
+    <span from="79" id="s2_13" to="84">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+	<f name="lex">
+	  <fs>
+	    <f name="lemma">bevor</f>
+	    <f name="pos">KOUS</f>
+	    <f name="msd">_</f>
+	  </fs>
+	</f>
+      </fs>
+    </span>
+    <span from="85" id="s2_14" to="88">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+	<f name="lex">
+	  <fs>
+	    <f name="lemma">der</f>
+	    <f name="pos">ART</f>
+	    <f name="msd">case=nom|number=sg|gender=masc</f>
+	  </fs>
+	</f>
+      </fs>
+    </span>
+    <span from="89" id="s2_15" to="96">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+	<f name="lex">
+	  <fs>
+	    <f name="lemma">betrieb</f>
+	    <f name="pos">NN</f>
+	    <f name="msd">case=nom|number=sg|gender=masc</f>
+	  </fs>
+	</f>
+      </fs>
+    </span>
+    <span from="97" id="s2_16" to="101">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+	<f name="lex">
+	  <fs>
+	    <f name="lemma">ende</f>
+	    <f name="pos">NN</f>
+	    <f name="msd">case=*|number=sg|gender=neut</f>
+	  </fs>
+	</f>
+      </fs>
+    </span>
+    <span from="102" id="s2_17" to="111">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+	<f name="lex">
+	  <fs>
+	    <f name="lemma">schuljahr</f>
+	    <f name="pos">NN</f>
+	    <f name="msd">case=*|number=sg|gender=masc</f>
+	  </fs>
+	</f>
+      </fs>
+    </span>
+    <span from="112" id="s2_18" to="123">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+	<f name="lex">
+	  <fs>
+	    <f name="lemma">einstellen</f>
+	    <f name="pos">VVPP</f>
+	    <f name="msd">_</f>
+	  </fs>
+	</f>
+      </fs>
+    </span>
+    <span from="124" id="s2_19" to="128">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+	<f name="lex">
+	  <fs>
+	    <f name="lemma">werden</f>
+	    <f name="pos">VAFIN</f>
+	    <f name="msd">number=sg|person=3|tense=pres|mood=ind</f>
+	  </fs>
+	</f>
+      </fs>
+    </span>
+  </spanList>
+</layer>
diff --git a/t/index/corpus/doc/text/struct/structure.xml b/t/index/corpus/doc/text/struct/structure.xml
new file mode 100644
index 0000000..2ef6178
--- /dev/null
+++ b/t/index/corpus/doc/text/struct/structure.xml
@@ -0,0 +1,309 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<?xml-model href="span.rng" type="application/xml" schematypens="http://relaxng.org/ns/structure/1.0"?>
+
+<layer docid="A01_APR.13047" xmlns="http://ids-mannheim.de/ns/KorAP" version="KorAP-0.4">
+  <spanList>
+    <span id="s0" from="0" to="1327">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">idsText</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="version">1.0</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s1" from="0" to="0">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">idsHeader</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="version">1.1</f>
+            <f name="status">new</f>
+            <f name="TEIform">teiHeader</f>
+            <f name="pattern">text</f>
+            <f name="type">text</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s2" from="0" to="1327">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">text</f>
+      </fs>
+    </span>
+    <span id="s3" from="0" to="0">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">front</f>
+      </fs>
+    </span>
+    <span id="s4" from="0" to="1327">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">body</f>
+      </fs>
+    </span>
+    <span id="s5" from="0" to="1327">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">div</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="n">0</f>
+            <f name="type">Zeitung</f>
+            <f name="complete">y</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s6" from="0" to="31">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">head</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="type">main</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s7" from="0" to="31">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">s</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="broken">no</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s8" from="32" to="42">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">byline</f>
+      </fs>
+    </span>
+    <span id="s9" from="32" to="42">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">s</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="broken">no</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s10" from="43" to="633">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">div</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="n">1</f>
+            <f name="type">section</f>
+            <f name="complete">y</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s11" from="43" to="633">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">p</f>
+      </fs>
+    </span>
+    <span id="s12" from="43" to="172">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">s</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="broken">no</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s13" from="173" to="364">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">s</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="broken">no</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s14" from="365" to="477">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">s</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="broken">no</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s15" from="478" to="633">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">s</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="broken">no</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s16" from="634" to="1008">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">div</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="n">1</f>
+            <f name="type">section</f>
+            <f name="complete">y</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s17" from="634" to="658">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">head</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="type">cross</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s18" from="634" to="658">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">s</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="broken">no</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s19" from="659" to="664">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">byline</f>
+      </fs>
+    </span>
+    <span id="s20" from="659" to="664">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">s</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="broken">no</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s21" from="665" to="1008">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">p</f>
+      </fs>
+    </span>
+    <span id="s22" from="665" to="789">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">s</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="broken">no</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s23" from="790" to="865">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">s</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="broken">no</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s24" from="866" to="1008">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">s</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="broken">no</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s25" from="1009" to="1327">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">div</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="n">1</f>
+            <f name="type">section</f>
+            <f name="complete">y</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s26" from="1009" to="1036">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">head</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="type">cross</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s27" from="1009" to="1036">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">s</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="broken">no</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s28" from="1037" to="1050">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">byline</f>
+      </fs>
+    </span>
+    <span id="s29" from="1037" to="1050">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">s</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="broken">no</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s30" from="1051" to="1327">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">p</f>
+      </fs>
+    </span>
+    <span id="s31" from="1051" to="1220">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">s</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="broken">no</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s32" from="1221" to="1327">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">s</f>
+        <f name="attr">
+          <fs type="attr">
+            <f name="broken">no</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span id="s33" from="1327" to="1327">
+      <fs type="struct" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="name">back</f>
+      </fs>
+    </span>
+  </spanList>
+</layer>
diff --git a/t/index/corpus/doc/text/tree_tagger/morpho.xml b/t/index/corpus/doc/text/tree_tagger/morpho.xml
new file mode 100644
index 0000000..e229cec
--- /dev/null
+++ b/t/index/corpus/doc/text/tree_tagger/morpho.xml
@@ -0,0 +1,216 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<?xml-model href="span.rng" type="application/xml" schematypens="http://relaxng.org/ns/structure/1.0"?>
+
+<layer docid="Corpus_Doc.0001" version="KorAP-0.4" xmlns="http://ids-mannheim.de/ns/KorAP">
+  <spanList>
+    <span from="0" id="s_7" to="3">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="lex">
+          <fs>
+            <f name="lemma">zum</f>
+            <f name="certainty">1.000000</f>
+            <f name="ctag">APPRART</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span from="4" id="s_8" to="11">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="lex">
+          <fs>
+            <f name="lemma">letzt</f>
+            <f name="certainty">1.000000</f>
+            <f name="ctag">ADJA</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span from="12" id="s_9" to="23">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="lex">
+          <fs>
+            <f name="lemma">kulturell</f>
+            <f name="certainty">1.000000</f>
+            <f name="ctag">ADJA</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span from="24" id="s_10" to="30">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="lex">
+          <fs>
+            <f name="lemma">Anlaß</f>
+            <f name="certainty">1.000000</f>
+            <f name="ctag">NN</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span from="31" id="s_11" to="35">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="lex">
+          <fs>
+            <f name="lemma">laden</f>
+            <f name="certainty">1.000000</f>
+            <f name="ctag">VVFIN</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span from="36" id="s_12" to="39">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="lex">
+          <fs>
+            <f name="lemma">die</f>
+            <f name="certainty">0.997413</f>
+            <f name="ctag">ART</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span from="40" id="s_13" to="47">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="lex">
+          <fs>
+            <f name="lemma">Leitung</f>
+            <f name="certainty">1.000000</f>
+            <f name="ctag">NN</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span from="48" id="s_14" to="51">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="lex">
+          <fs>
+            <f name="lemma">die</f>
+            <f name="certainty">1.000000</f>
+            <f name="ctag">ART</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span from="52" id="s_15" to="63">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="lex">
+          <fs>
+            <f name="lemma">Schulheim</f>
+            <f name="certainty">1.000000</f>
+            <f name="ctag">NN</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span from="64" id="s_16" to="73">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="lex">
+          <fs>
+            <f name="lemma">UNKNOWN</f>
+            <f name="certainty">0.912122</f>
+            <f name="ctag">NE</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span from="74" id="s_17" to="77">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="lex">
+          <fs>
+            <f name="lemma">ein</f>
+            <f name="certainty">0.992479</f>
+            <f name="ctag">PTKVZ</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span from="77" id="s_18" to="78">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="lex">
+          <fs>
+            <f name="lemma">,</f>
+            <f name="certainty">1.000000</f>
+            <f name="ctag">$,</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span from="79" id="s_19" to="84">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="lex">
+          <fs>
+            <f name="lemma">bevor</f>
+            <f name="certainty">0.999168</f>
+            <f name="ctag">KOUS</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span from="85" id="s_20" to="88">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="lex">
+          <fs>
+            <f name="lemma">die</f>
+            <f name="certainty">0.999135</f>
+            <f name="ctag">ART</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span from="89" id="s_21" to="96">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="lex">
+          <fs>
+            <f name="lemma">Betrieb</f>
+            <f name="certainty">1.000000</f>
+            <f name="ctag">NN</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span from="97" id="s_22" to="101">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="lex">
+          <fs>
+            <f name="lemma">Ende</f>
+            <f name="certainty">1.000000</f>
+            <f name="ctag">NN</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span from="102" id="s_23" to="111">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="lex">
+          <fs>
+            <f name="lemma">Schuljahr</f>
+            <f name="certainty">1.000000</f>
+            <f name="ctag">NN</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span from="112" id="s_24" to="123">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="lex">
+          <fs>
+            <f name="lemma">einstellen</f>
+            <f name="certainty">1.000000</f>
+            <f name="ctag">VVPP</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+    <span from="124" id="s_25" to="128">
+      <fs type="lex" xmlns="http://www.tei-c.org/ns/1.0">
+        <f name="lex">
+          <fs>
+            <f name="lemma">werden</f>
+            <f name="certainty">1.000000</f>
+            <f name="ctag">VAFIN</f>
+          </fs>
+        </f>
+      </fs>
+    </span>
+  </spanList>
+</layer>
diff --git a/t/index/corpus/doc/text/tree_tagger/sentences.xml b/t/index/corpus/doc/text/tree_tagger/sentences.xml
new file mode 100644
index 0000000..cd2b00b
--- /dev/null
+++ b/t/index/corpus/doc/text/tree_tagger/sentences.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<?xml-model href="span.rng" type="application/xml" schematypens="http://relaxng.org/ns/structure/1.0"?>
+
+<layer xmlns="http://ids-mannheim.de/ns/KorAP" version="KorAP-0.4" docid="Corpus_Doc.0001">
+  <spanList>
+    <span from="0" to="130" />
+  </spanList>
+</layer>
diff --git a/t/index/glemm_morpho.t b/t/index/glemm_morpho.t
index 49157d5..650cecc 100644
--- a/t/index/glemm_morpho.t
+++ b/t/index/glemm_morpho.t
@@ -44,6 +44,7 @@
 
 is($data->{stream}->[0]->[2], 'glemm/l:__zu', 'Lemma');
 is($data->{stream}->[1]->[1], 'glemm/l:__letzt-', 'Lemma');
+
 is($data->{stream}->[3]->[1], 'glemm/l:_+an-', 'Lemma');
 is($data->{stream}->[3]->[2], 'glemm/l:_+lass', 'Lemma');
 is($data->{stream}->[3]->[3], 'glemm/l:__Anlass', 'Lemma');
diff --git a/t/index/mate_dependency.t b/t/index/mate_dependency.t
new file mode 100644
index 0000000..b4e4150
--- /dev/null
+++ b/t/index/mate_dependency.t
@@ -0,0 +1,45 @@
+#!/usr/bin/env perl
+use strict;
+use warnings;
+use utf8;
+use Test::More skip_all => 'Not yet implemented';
+use Scalar::Util qw/weaken/;
+use Data::Dumper;
+
+use_ok('KorAP::Document');
+
+use File::Basename 'dirname';
+use File::Spec::Functions 'catdir';
+
+my $path = catdir(dirname(__FILE__), 'corpus', 'doc', 'text');
+
+ok(my $doc = KorAP::Document->new(
+  path => $path . '/'
+), 'Load Korap::Document');
+
+like($doc->path, qr!$path/$!, 'Path');
+ok($doc->parse, 'Parse document');
+
+ok($doc->primary->data, 'Primary data in existence');
+is($doc->primary->data_length, 129, 'Data length');
+
+use_ok('KorAP::Tokenizer');
+
+ok(my $tokens = KorAP::Tokenizer->new(
+  path => $doc->path,
+  doc => $doc,
+  foundry => 'OpenNLP',
+  layer => 'Tokens',
+  name => 'tokens'
+), 'New Tokenizer');
+
+ok($tokens->parse, 'Parse');
+
+ok($tokens->add('Mate', 'Dependency'), 'Add Structure');
+
+# my $data = $tokens->to_data->{data};
+
+done_testing;
+
+__END__
+
diff --git a/t/index/mate_morpho.t b/t/index/mate_morpho.t
new file mode 100644
index 0000000..16dde94
--- /dev/null
+++ b/t/index/mate_morpho.t
@@ -0,0 +1,62 @@
+#!/usr/bin/env perl
+use strict;
+use warnings;
+use utf8;
+use Test::More;
+use Scalar::Util qw/weaken/;
+use Data::Dumper;
+
+use_ok('KorAP::Document');
+
+use File::Basename 'dirname';
+use File::Spec::Functions 'catdir';
+
+my $path = catdir(dirname(__FILE__), 'corpus', 'doc', 'text');
+
+ok(my $doc = KorAP::Document->new(
+  path => $path . '/'
+), 'Load Korap::Document');
+
+like($doc->path, qr!$path/$!, 'Path');
+ok($doc->parse, 'Parse document');
+
+ok($doc->primary->data, 'Primary data in existence');
+is($doc->primary->data_length, 129, 'Data length');
+
+use_ok('KorAP::Tokenizer');
+
+ok(my $tokens = KorAP::Tokenizer->new(
+  path => $doc->path,
+  doc => $doc,
+  foundry => 'OpenNLP',
+  layer => 'Tokens',
+  name => 'tokens'
+), 'New Tokenizer');
+
+ok($tokens->parse, 'Parse');
+
+ok($tokens->add('Mate', 'Morpho'), 'Add Structure');
+
+my $data = $tokens->to_data->{data};
+
+like($data->{foundries}, qr!mate/morpho!, 'data');
+like($data->{layerInfos}, qr!mate/p=tokens!, 'data');
+like($data->{layerInfos}, qr!mate/l=tokens!, 'data');
+like($data->{layerInfos}, qr!mate/m=tokens!, 'data');
+
+is($data->{stream}->[0]->[3], 'mate/l:zu', 'POS');
+is($data->{stream}->[0]->[4], 'mate/m:case:dat', 'POS');
+is($data->{stream}->[0]->[5], 'mate/m:gender:neut', 'POS');
+is($data->{stream}->[0]->[6], 'mate/m:number:sg', 'POS');
+is($data->{stream}->[0]->[7], 'mate/p:APPRART', 'POS');
+
+is($data->{stream}->[-1]->[2], 'mate/l:werden', 'POS');
+is($data->{stream}->[-1]->[3], 'mate/m:mood:ind', 'POS');
+is($data->{stream}->[-1]->[4], 'mate/m:number:sg', 'POS');
+is($data->{stream}->[-1]->[5], 'mate/m:person:3', 'POS');
+is($data->{stream}->[-1]->[6], 'mate/m:tense:pres', 'POS');
+is($data->{stream}->[-1]->[7], 'mate/p:VAFIN', 'POS');
+
+done_testing;
+
+__END__
diff --git a/t/index/mate_morpho_attr.t b/t/index/mate_morpho_attr.t
new file mode 100644
index 0000000..2833c4e
--- /dev/null
+++ b/t/index/mate_morpho_attr.t
@@ -0,0 +1,61 @@
+#!/usr/bin/env perl
+use strict;
+use warnings;
+use utf8;
+use Test::More;
+use Scalar::Util qw/weaken/;
+use Data::Dumper;
+
+use_ok('KorAP::Document');
+
+use File::Basename 'dirname';
+use File::Spec::Functions 'catdir';
+
+my $path = catdir(dirname(__FILE__), 'corpus', 'doc', 'text');
+
+ok(my $doc = KorAP::Document->new(
+  path => $path . '/'
+), 'Load Korap::Document');
+
+like($doc->path, qr!$path/$!, 'Path');
+ok($doc->parse, 'Parse document');
+
+ok($doc->primary->data, 'Primary data in existence');
+is($doc->primary->data_length, 129, 'Data length');
+
+use_ok('KorAP::Tokenizer');
+
+ok(my $tokens = KorAP::Tokenizer->new(
+  path => $doc->path,
+  doc => $doc,
+  foundry => 'OpenNLP',
+  layer => 'Tokens',
+  name => 'tokens'
+), 'New Tokenizer');
+
+ok($tokens->parse, 'Parse');
+
+ok($tokens->add('Mate', 'MorphoAttr'), 'Add Structure');
+
+my $data = $tokens->to_data->{data};
+
+like($data->{foundries}, qr!mate/morphoattr!, 'data');
+like($data->{layerInfos}, qr!mate/p=tokens!, 'data');
+like($data->{layerInfos}, qr!mate/l=tokens!, 'data');
+
+is($data->{stream}->[0]->[1], '@:gender=neut$<b>16<s>1', 'POS');
+is($data->{stream}->[0]->[2], '@:number=sg$<b>16<s>1', 'POS');
+is($data->{stream}->[0]->[3], '@:case=dat$<b>16<s>1', 'POS');
+is($data->{stream}->[0]->[6], 'mate/l:zu', 'Lemmata');
+is($data->{stream}->[0]->[7], 'mate/p:APPRART$<b>128<s>1', 'POS');
+
+is($data->{stream}->[-1]->[0], '@:mood=ind$<b>16<s>1', 'POS');
+is($data->{stream}->[-1]->[1], '@:tense=pres$<b>16<s>1', 'POS');
+is($data->{stream}->[-1]->[2], '@:person=3$<b>16<s>1', 'POS');
+is($data->{stream}->[-1]->[3], '@:number=sg$<b>16<s>1', 'POS');
+is($data->{stream}->[-1]->[6], 'mate/l:werden', 'Lemmata');
+is($data->{stream}->[-1]->[7], 'mate/p:VAFIN$<b>128<s>1', 'POS');
+
+done_testing;
+
+__END__
diff --git a/t/index/tt_morpho.t b/t/index/tt_morpho.t
new file mode 100644
index 0000000..f2b31c9
--- /dev/null
+++ b/t/index/tt_morpho.t
@@ -0,0 +1,61 @@
+#!/usr/bin/env perl
+use strict;
+use warnings;
+use utf8;
+use Test::More;
+use Scalar::Util qw/weaken/;
+use Data::Dumper;
+
+use_ok('KorAP::Document');
+
+use File::Basename 'dirname';
+use File::Spec::Functions 'catdir';
+
+my $path = catdir(dirname(__FILE__), 'corpus', 'doc', 'text');
+
+ok(my $doc = KorAP::Document->new(
+  path => $path . '/'
+), 'Load Korap::Document');
+
+like($doc->path, qr!$path/$!, 'Path');
+ok($doc->parse, 'Parse document');
+
+ok($doc->primary->data, 'Primary data in existence');
+is($doc->primary->data_length, 129, 'Data length');
+
+use_ok('KorAP::Tokenizer');
+
+ok(my $tokens = KorAP::Tokenizer->new(
+  path => $doc->path,
+  doc => $doc,
+  foundry => 'OpenNLP',
+  layer => 'Tokens',
+  name => 'tokens'
+), 'New Tokenizer');
+
+ok($tokens->parse, 'Parse');
+
+ok($tokens->add('TreeTagger', 'Morpho'), 'Add Structure');
+
+my $data = $tokens->to_data->{data};
+
+like($data->{foundries}, qr!treetagger/morpho!, 'data');
+like($data->{layerInfos}, qr!tt/p=tokens!, 'data');
+like($data->{layerInfos}, qr!tt/l=tokens!, 'data');
+
+is($data->{stream}->[0]->[4], 'tt/l:zum$<b>129<b>255', 'POS');
+is($data->{stream}->[0]->[5], 'tt/p:APPRART$<b>129<b>255', 'POS');
+
+is($data->{stream}->[3]->[3], 'tt/l:Anlaß$<b>129<b>255', 'POS');
+is($data->{stream}->[3]->[4], 'tt/p:NN$<b>129<b>255', 'POS');
+
+is($data->{stream}->[10]->[3], 'tt/l:ein$<b>129<b>253', 'POS');
+is($data->{stream}->[10]->[4], 'tt/p:PTKVZ$<b>129<b>253', 'POS');
+
+is($data->{stream}->[-1]->[3], 'tt/l:werden$<b>129<b>255', 'POS');
+is($data->{stream}->[-1]->[4], 'tt/p:VAFIN$<b>129<b>255', 'POS');
+
+done_testing;
+
+__END__
+
diff --git a/t/index/tt_sentences.t b/t/index/tt_sentences.t
new file mode 100644
index 0000000..3776197
--- /dev/null
+++ b/t/index/tt_sentences.t
@@ -0,0 +1,53 @@
+#!/usr/bin/env perl
+use strict;
+use warnings;
+use utf8;
+use Test::More;
+use Scalar::Util qw/weaken/;
+use Data::Dumper;
+
+use_ok('KorAP::Document');
+
+use File::Basename 'dirname';
+use File::Spec::Functions 'catdir';
+
+my $path = catdir(dirname(__FILE__), 'corpus', 'doc', 'text');
+
+ok(my $doc = KorAP::Document->new(
+  path => $path . '/'
+), 'Load Korap::Document');
+
+like($doc->path, qr!$path/$!, 'Path');
+ok($doc->parse, 'Parse document');
+
+ok($doc->primary->data, 'Primary data in existence');
+is($doc->primary->data_length, 129, 'Data length');
+
+use_ok('KorAP::Tokenizer');
+
+ok(my $tokens = KorAP::Tokenizer->new(
+  path => $doc->path,
+  doc => $doc,
+  foundry => 'OpenNLP',
+  layer => 'Tokens',
+  name => 'tokens'
+), 'New Tokenizer');
+
+ok($tokens->parse, 'Parse');
+
+ok($tokens->add('TreeTagger', 'Sentences'), 'Add Structure');
+
+my $data = $tokens->to_data->{data};
+
+#diag Dumper $data;
+
+like($data->{foundries}, qr!treetagger/sentences!, 'data');
+is($data->{stream}->[0]->[0], '-:tokens$<i>18', 'Number of tokens');
+is($data->{stream}->[0]->[1], '-:tt/sentences$<i>1', 'Number of paragraphs');
+is($data->{stream}->[0]->[2], '<>:tt/s:s$<b>64<i>0<i>130<i>17<b>0', 'Text');
+is($data->{stream}->[0]->[3], '_0$<i>0<i>3', 'Position');
+is($data->{stream}->[-1]->[0], '_17$<i>124<i>128', 'Position');
+
+done_testing;
+
+__END__