Update app.py

app.py

@@ -162,7 +162,9 @@ def respon(prompt, response, error):
 def model_preference(res1, res2):
     model_pref = f'''which model I should use chose any one and give justification why that model is better over another model and please answer in 2-3 lines only and it should looks like it was written by human and also model comparison should indicates the issues as well..
             Model A: {res1}
-            Model B: {res2}'''
+            Model B: {res2}
+            
+            e.g. statement should start like this : Model A is preferable over Model B or Model B is more preferable over Model A'''
 
     preference = chat_model.invoke(model_pref).content
     return preference