Update unify_predicate.py

unify_predicate.py

@@ -51,4 +51,4 @@ print(f"{len(data_filter_join)} triples, {len(data_filter_join['predicate'].uniq
 
 with open(f"data/t_rex.filter_unified.jsonl", 'w') as f:
     for _, i in data_filter_join.iterrows():
-        f.write(json.dumps(i) + '\n')
+        f.write(json.dumps(i.to_dict()) + '\n')