Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
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Question: Who were later Yuan emperors isolated um what problems did the Yuan dynasty have near its end?

Answer: What problems did the Yuan dynasty have near its end?


Question: What is taking evidence from witnesses an example of, according to the committees?

Answer: Taking evidence from witnesses is one of committees' what?


Question: When are Killer T cells damaged no no deactivated?

Answer:
When are Killer T cells deactivated?