Updated relation key to relType.

Change-Id: Ice39642f5099caac1b6bad3793ef9023dcc9719b
diff --git a/src/test/resources/queries/relation/match-source.json b/src/test/resources/queries/relation/match-source.json
index 3ca5686..0f50094 100644
--- a/src/test/resources/queries/relation/match-source.json
+++ b/src/test/resources/queries/relation/match-source.json
@@ -12,7 +12,7 @@
                 "@type": "koral:token"             
             }
         ],
-        "relation": {
+        "relType": {
             "@type": "koral:relation",
             "wrap": {
                 "@type": "koral:term",