diff --git a/src/test/java/de/ids_mannheim/korap/benchmark/TestBenchmarkElementSpans.java b/src/test/java/de/ids_mannheim/korap/benchmark/TestBenchmarkElementSpans.java
new file mode 100644
index 0000000..e7d11a3
--- /dev/null
+++ b/src/test/java/de/ids_mannheim/korap/benchmark/TestBenchmarkElementSpans.java
@@ -0,0 +1,131 @@
+package de.ids_mannheim.korap.benchmark;
+
+import java.util.*;
+import java.io.*;
+
+import de.ids_mannheim.korap.KorapIndex;
+import de.ids_mannheim.korap.index.FieldDocument;
+import de.ids_mannheim.korap.KorapCollection;
+import de.ids_mannheim.korap.KorapFilter;
+import de.ids_mannheim.korap.KorapSearch;
+import de.ids_mannheim.korap.KorapResult;
+import de.ids_mannheim.korap.KorapQuery;
+import org.apache.lucene.store.MMapDirectory;
+import de.ids_mannheim.korap.filter.BooleanFilter;
+import org.apache.lucene.search.spans.SpanQuery;
+import de.ids_mannheim.korap.query.wrap.SpanQueryWrapperInterface;
+import de.ids_mannheim.korap.util.QueryException;
+
+import static org.junit.Assert.*;
+import org.junit.Test;
+import org.junit.Ignore;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+@RunWith(JUnit4.class)
+public class TestBenchmarkElementSpans {
+
+    @Test
+    public void checkspans1 () throws IOException {
+	Properties prop = new Properties();
+	InputStream fr = new FileInputStream(getClass().getResource("/korap.conf").getFile());
+	prop.load(fr);
+
+	// Get the real index
+	KorapIndex ki = new KorapIndex(new MMapDirectory(new File(prop.getProperty("lucene.indexDir"))));
+
+	// Create a container for virtual collections:
+	KorapCollection kc = new KorapCollection(ki);
+
+	// Construct filter generator
+	// KorapFilter kf = new KorapFilter();
+
+	// The virtual collection consists of all documents that have
+	// the textClasses "reisen" and "freizeit"
+	//	kc.filter( kf.and("textClass", "reisen").and("textClass", "freizeit-unterhaltung") );
+
+	// This is real slow atm - sorry
+	// kc.filter(kf.and("textClass", "kultur"));
+
+
+	// Create a query
+	// KorapQuery kq = new KorapQuery("tokens");
+
+	long t1 = 0, t2 = 0;
+	t1 = System.nanoTime();
+
+	String json = getString(getClass().getResource("/queries/bsp19.jsonld").getFile());
+
+	int rounds = 1;
+
+	for (int i = 1; i <= rounds; i++) {
+	    /*
+	    SpanQuery query =
+		kq.within(
+			  kq.tag("xip/const:NPA"),
+			  kq._(1,
+			       kq.seq(
+				      kq._(2, kq.seg("cnx/p:A").with("mate/m:number:sg"))
+				      ).append(
+					       kq.seg("opennlp/p:NN").with("tt/p:NN")
+					       )
+			       )
+			  ).toQuery();
+	    */
+	    // SpanQuery query = kq.tag("s").toQuery();
+
+	    KorapResult kr = new KorapSearch(json).run(ki);
+	    System.err.println(kr.toJSON());
+	};
+
+	t2 = System.nanoTime();
+	
+	System.out.println("It took " + ((t2 - t1) / rounds) * 1e-6 + " ms per query");
+
+
+
+	//	kc = new KorapCollection("{\"meta\":[{\"@type\":\"korap:meta-filter\",\"@value\":{\"@type\":\"korap:term\",\"@field\":\"korap:field#corpusID\",\"@value\":\"A00\"}},{\"@type\":\"korap:meta-extend\",\"@value\":{\"@type\":\"korap:term\",\"@field\":\"korap:field#corpusID\",\"@value\":\"A01\"}}]}");
+
+	//	kc = new KorapCollection("{\"meta\":[{\"@type\":\"korap:meta-filter\",\"@value\":{\"@type\":\"korap:term\",\"@field\":\"korap:field#corpusID\",\"@value\":\"A01\"}}]}");
+	/*
+	kc = new KorapCollection("{\"meta\":[{\"@type\":\"korap:meta-filter\",\"@value\":{\"@type\":\"korap:term\",\"@field\":\"korap:field#textClass\",\"@value\":\"reisen\"}}]}");
+	kc.setIndex(ki);
+
+	System.err.println(kc.getFilter(0).toString());
+	System.err.println(kc.numberOf("documents"));
+
+	*/
+
+	// assertEquals(14, kc.numberOf("documents"));
+    };
+
+    public static String getString (String path) {
+	StringBuilder contentBuilder = new StringBuilder();
+	try {
+	    BufferedReader in = new BufferedReader(new FileReader(path));
+	    String str;
+	    while ((str = in.readLine()) != null) {
+		contentBuilder.append(str);
+	    };
+	    in.close();
+	} catch (IOException e) {
+	    fail(e.getMessage());
+	}
+	return contentBuilder.toString();
+    };
+
+    public static SpanQueryWrapperInterface jsonQuery (String jsonFile) {
+	SpanQueryWrapperInterface sqwi;
+	
+	try {
+	    String json = getString(jsonFile);
+	    sqwi = new KorapQuery("tokens").fromJSON(json);
+	}
+	catch (QueryException e) {
+	    fail(e.getMessage());
+	    sqwi = new KorapQuery("tokens").seg("???");
+	};
+	return sqwi;
+    };
+    
+};
diff --git a/src/test/resources/queries/bsp19.jsonld b/src/test/resources/queries/bsp19.jsonld
new file mode 100644
index 0000000..5710602
--- /dev/null
+++ b/src/test/resources/queries/bsp19.jsonld
@@ -0,0 +1,46 @@
+{
+    "@context" : "http://ids-mannheim.de/ns/KorAP/json-ld/v0.1/context.jsonld",
+    "query" : {
+	"@type" : "korap:group",
+	"operation" : "operation:sequence",
+	"inOrder" : true,
+	"distances" : [ {
+	    "@type" : "korap:distance",
+	    "key" : "w",
+	    "min" : 1,
+	    "max" : 3
+	}, {
+	    "@type" : "korap:distance",
+	    "key" : "s",
+	    "min" : 0,
+	    "max" : 1
+	} ],
+	"operands" : [ {
+	    "@type" : "korap:token",
+	    "wrap" : {
+		"@type" : "korap:term",
+		"key" : "das",
+		"layer" : "orth",
+		"match" : "match:eq"
+	    }
+	}, {
+	    "@type" : "korap:token",
+	    "wrap" : {
+		"@type" : "korap:term",
+		"key" : "Buch",
+		"layer" : "orth",
+		"match" : "match:eq"
+	    }
+	}
+		     ]
+    },
+    "meta" : {
+	"count":25,
+	"cutOff":true,
+	"context":{
+	    "left":["char",110],
+	    "right":["char",110]
+	},
+	"startPage":1
+    }
+}