Cleanup and initial position frames
diff --git a/src/test/resources/queries/benchmark5.jsonld b/src/test/resources/queries/benchmark5.jsonld
index 332d23f..1f64527 100644
--- a/src/test/resources/queries/benchmark5.jsonld
+++ b/src/test/resources/queries/benchmark5.jsonld
@@ -15,7 +15,7 @@
 	    {
 		"@type" : "korap:group",
 		"operation" : "operation:class",
-		"class" : 1,
+		"classOut" : 1,
 		"operands" : [
 		    {
 			"@type": "korap:group", 
@@ -32,7 +32,7 @@
 			    {
 				"@type" : "korap:group",
 				"operation" : "operation:class",
-				"class" : 2,
+				"classOut" : 2,
 				"operands" : [
 				    {
 					"@type": "korap:token",