Cleanup and initial position frames
diff --git a/src/test/resources/queries/bsp18.jsonld b/src/test/resources/queries/bsp18.jsonld
index 99afb29..f0c2fc2 100644
--- a/src/test/resources/queries/bsp18.jsonld
+++ b/src/test/resources/queries/bsp18.jsonld
@@ -13,7 +13,7 @@
     "operands" : [ {
       "@type" : "korap:group",
       "operation" : "operation:class",
-      "class" : 1,
+      "classOut" : 1,
       "operands" : [ {
         "@type" : "korap:token",
         "wrap" : {