Updated app.py

app.py

@@ -34,7 +34,9 @@ def answer_question(context: str, question: str) -> str:
             context=context.strip(),
             answer_texts=[],
             answer_starts=[],
-            is_impossible=False,
+            # TODO - treat this more systematically accounting for inference;
+            # setting is_impossible to True since no ground truth is available for an unknown Q
+            is_impossible=True,
         )
 
         predictions = model.predict({"demo": example})