Update app.py

app.py

@@ -68,7 +68,7 @@ def get_data(user_query: str):
     for doc in relevant_docs:
         articles += f"**Title: {doc.metadata['Title']}**\n\nAbstract: {doc.metadata['Summary']}\n\n"
     output = stuff_chain({"input_documents": relevant_docs, "context": user_query})
-    return f"{output["output_text"]}\n\n\n\nUsed articles:\n\n{output}"
+    return f"{output['output_text']}\n\n\n\nUsed articles:\n\n{output}"
 
 demo = gr.Interface(
     fn=get_data,