diff --git a/src/operations_builder/async_operations_builder_with_reasoner.ts b/src/operations_builder/async_operations_builder_with_reasoner.ts
index fb6d5e9..165f7c0 100644
--- a/src/operations_builder/async_operations_builder_with_reasoner.ts
+++ b/src/operations_builder/async_operations_builder_with_reasoner.ts
@@ -67,9 +67,11 @@ export default class AsyncOperationsBuilderWithReasoner extends AsyncOperationsB
               association: {
                 input_type: this.removeBioLinkPrefix(sbj),
                 output_type: this.removeBioLinkPrefix(obj),
-                predicate: this.removeBioLinkPrefix(pred),
+                predicate: this.removeBioLinkPrefix(typeof(pred) === "string" ? pred : pred.predicate),
                 api_name: metadata.title,
                 smartapi: metadata.smartapi,
+                association_id: typeof(pred) === "string" ? undefined : pred.association_id,
+                qualifiers: typeof(pred) === "string" ? undefined : pred.qualifiers,
                 "x-translator": metadata["x-translator"],
               },
               tags: [...metadata.tags, ...["bte-trapi"]],
diff --git a/src/operations_builder/sync_operations_builder_with_reasoner.ts b/src/operations_builder/sync_operations_builder_with_reasoner.ts
index 8fed28c..c723e86 100644
--- a/src/operations_builder/sync_operations_builder_with_reasoner.ts
+++ b/src/operations_builder/sync_operations_builder_with_reasoner.ts
@@ -48,9 +48,11 @@ export default class SyncOperationsBuilderWithReasoner extends BaseOperationsBui
                 input_id: metadata?.nodes?.[sbj]?.id_prefixes,
                 output_type: this.removeBioLinkPrefix(obj),
                 output_id: metadata?.nodes?.[obj]?.id_prefixes,
-                predicate: this.removeBioLinkPrefix(pred),
+                predicate: this.removeBioLinkPrefix(typeof(pred) === "string" ? pred : pred.predicate),
                 api_name: metadata.association.api_name,
                 smartapi: metadata.association.smartapi,
+                association_id: typeof(pred) === "string" ? undefined : pred.association_id,
+                qualifiers: typeof(pred) === "string" ? undefined : pred.qualifiers,
                 "x-translator": metadata.association["x-translator"],
                 "x-trapi": metadata.association["x-trapi"],
               },
diff --git a/src/parser/endpoint.ts b/src/parser/endpoint.ts
index b92a082..7c622d5 100644
--- a/src/parser/endpoint.ts
+++ b/src/parser/endpoint.ts
@@ -84,6 +84,7 @@ export default class Endpoint {
       output_id: this.removeBioLinkPrefix(output.id),
       output_type: this.removeBioLinkPrefix(output.semantic),
       predicate: this.removeBioLinkPrefix(op.predicate),
+      association_id: this.removeBioLinkPrefix(op.biolink_association_type),
       qualifiers: op.qualifiers
         ? Object.fromEntries(
             Object.entries(op.qualifiers).map(([qualifierType, qualifier]) => [
diff --git a/src/parser/types.ts b/src/parser/types.ts
index 15cc99b..9989e6e 100644
--- a/src/parser/types.ts
+++ b/src/parser/types.ts
@@ -111,6 +111,7 @@ export interface XBTEKGSOperationObject {
   inputs: XBTEKGSOperationBioEntityObject[];
   outputs: XBTEKGSOperationBioEntityObject[];
   predicate: string;
+  biolink_association_type?: string;
   qualifiers?: { [qualifierType: string]: string; };
   source?: string;
   parameters?: XBTEParametersObject;
@@ -158,6 +159,7 @@ interface KGAssociationObject {
   api_name?: string;
   component?: string;
   smartapi?: SmartAPIRegistryRecordObject;
+  association_id?: string;
   "x-translator"?: any;
   "x-trapi"?: XTRAPIObject;
   qualifiers?: {
diff --git a/src/types.ts b/src/types.ts
index 839c17f..6150c68 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -37,6 +37,7 @@ interface PredicatesQueryOperationInterface {
 interface PredicatesAssociationInterface {
   api_name: string;
   smartapi: SmartAPIRegistryRecordObject;
+  association_id?: string;
   "x-translator": any;
   "x-trapi"?: XTRAPIObject;
 }
@@ -58,7 +59,7 @@ interface PredicatesNode {
 }
 
 interface ReasonerSubjectAndPredicate {
-  [propName: string]: string[];
+  [propName: string]: any[];
 }
 
 export interface ReasonerPredicatesResponse {