measures for multiple sentence counts, improved test suite
diff --git a/t/artificial/opennlp/sentences.xml b/t/artificial/opennlp/sentences.xml
new file mode 100644
index 0000000..fcb2188
--- /dev/null
+++ b/t/artificial/opennlp/sentences.xml
@@ -0,0 +1,5 @@
+<?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" docid="A01_APR.13047" VERSION="KorAP-0.4">
+ <spanList>
+ <span from="0" to="129"/>
+ </spanList>
+</layer>