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: On Fridays, Billy answers in a loud voice and Sally in a quiet voice. 
Question: How long does it take for them to answer?
A: 
No.