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'.

[EX Q]: Sentence: She told them that she would help take care of the puppy, if she could have one.
Question: How often did she ask for a puppy?
[EX A]: No.

[EX Q]: Sentence: Allan crouched over his desk once more, pen in hand and mind blank.
Question: Is Allan still crouched over his desk right now?
[EX A]: No.

[EX Q]: Sentence: Thats because the sound couldnt travel without air particles to transfer the sound energy.
Question: What time does the sound energy get transferred?
[EX A]:
No.