diff --git a/src/rules/MCQ.json b/src/rules/MCQ.json
index 22ba191..10f65b4 100644
--- a/src/rules/MCQ.json
+++ b/src/rules/MCQ.json
@@ -31,14 +31,15 @@
                     },
                     "edges": {
                         "edge_0": {
-                            "subject": "g",
+                            "subject": "b",
                             "object": "$source",
                             "predicates": [
-                                "biolink:has_phenotype"
+                                "biolink:has_phenotype",
+                                "biolink:correlated_with"
                             ]
                         },
                         "edge_1": {
-                            "subject": "g",
+                            "subject": "b",
                             "object": "$target",
                             "predicates": [
                                 "biolink:genetically_associated_with"
@@ -79,14 +80,14 @@
                     },
                     "edges": {
                         "edge_0": {
-                            "subject": "g",
+                            "subject": "b",
                             "object": "$source",
                             "predicates": [
                                 "biolink:contributes_to"
                             ]
                         },
                         "edge_1": {
-                            "subject": "g",
+                            "subject": "b",
                             "object": "$target",
                             "predicates": [
                                 "biolink:affects"
diff --git a/src/service_aggregator.py b/src/service_aggregator.py
index 45826af..54fccfc 100644
--- a/src/service_aggregator.py
+++ b/src/service_aggregator.py
@@ -926,9 +926,17 @@ def expand_query(input_message, params, guid):
         query = json.loads(qs)
         if source_input:
             del query["query_graph"]["nodes"][target]["ids"]
+            query["query_graph"]["nodes"][target].pop("member_ids", None)
+            if mcq:
+                query["query_graph"]["nodes"][source]["member_ids"] = member_ids
         else:
             del query["query_graph"]["nodes"][source]["ids"]
+            query["query_graph"]["nodes"][source].pop("member_ids", None)
+            if mcq:
+                query["query_graph"]["nodes"][target]["member_ids"] = member_ids
         message = {"message": query, "parameters": input_message.get("parameters") or {}}
+        if mcq:
+            message["message"]["knowledge_graph"] = deepcopy(input_message["message"]["knowledge_graph"])
         if "log_level" in input_message:
             message["log_level"] = input_message["log_level"]
         messages.append(message)