Update app.py

app.py

@@ -530,7 +530,7 @@ DO NOT add anything additional and return ONLY what is asked and in the format a
 
 If you output anything else, it is incorrect.
 
-If there is no information provided or the information is not relevant then answer as best based on your own knowledge.
+If there is no information provided ONLY then answer based on your own knowledge.
 
 Example of valid json response for user request: Who was the winner of 2025 World Snooker Championship:
 Response: Zhao Xintong.