Update app.py

app.py

@@ -15,9 +15,9 @@ condition(john_doe, 'Blind')""")
     janus.consult(tmp.name)
     tmp.close()
     if message.endswith("?"):
-        return prolog.query_once("eligible_for_ssi(john_doe)")
+        return janus.query_once("eligible_for_ssi(john_doe)")
     else:
-        return "Ask me about `eligible_for_ssi`!"
+        yield janus.query("eligible_for_ssi(john_doe)")
 
 gr.ChatInterface(
     yes_man,