Definition: 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'.
Input: Sentence: He tried to halt the Dayaks' piracy and head-hunting while defending their more ""morally acceptable"" customs. 
Question: What time of day does he usually speak?

No.