Update app.py

app.py

@@ -17,7 +17,8 @@ def process_inputs(user_input_json, session_id_json, project_id_json, chat_url,
         "project_id": project_id,
         "chat_url": [chat_url] * len(user_input),
         "update_variables": update_vars,
-        "output_variables": output_vars
+        "output_variables": output_vars,
+        "answer": [[] * len(x) if isinstance(x, list) else [] for x in user_input]
     })
 
     return df