Detailed Instructions: 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'.
See one example below:
Problem: Sentence: Jack played basketball for an hour after school, after which he was very tired. 
Question: How long did Jack play basketball?
Solution: Yes.
Explanation: The answer to this question (an hour)  lies in its text.

Problem: Sentence: Those in the shelter wondered if the aircraft had been shot down pursuant to this authorization. 
Question: Are they still in the shelter?
Solution:
Yes.