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: Boston Center TMU [Traffic Management Unit], we have a problem here.
Question: How often did problems arise?
[A]: No.

[Q]: Sentence: In a matter of 48 hours, Alexander II planned to release his plan for the duma to the Russian people.
Question: What did Alexander II do before releasing his plan?
[A]: Yes.

[Q]: Sentence: This sediment has been eroded off areas of land from upstream.
Question: When does most of the erosion occur?
[A]:
No.