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: The most powerful families thus carved out for themselves whole regions that were to become the fiefdoms of Japanese feudalism. 
Question: What happened after these regions were carved out?

Yes.