The answer will be 'yes' if the provided sentence contains an explicit mention that answers the given question. Otherwise, the answer should be 'no'. Instances where the answer is implied from the sentence using "instinct" or "common sense" (as opposed to being written explicitly in the sentence) should be labeled as 'no'.

Q: Sentence: Then the green ball told the orange ball that blue ball was stupid. 
Question: When did the green ball approach the orange ball?

A: No.
****
Q: Sentence: Those in the shelter wondered if the aircraft had been shot down pursuant to this authorization. 
Question: Are they still in the shelter?

A: Yes.
****
Q: Sentence: Pushkin gradually became committed to social reform and emerged as a spokesman for literary radicals. 
Question: How long did it take for Pushkin to commit to social reform?

A:
No.
****
