Update util.py

util.py

@@ -24,7 +24,7 @@ def read_file(file_path):
     elif ext in (".json", ".jsonl"):
         result = pd.read_json(file_path)
 
-    return result
+    return result.to_string()
 
 def get_final_answer(model, question, answer):
     prompt_template = """