Definition: Convert a disfluent question to a proper question. A disfluent question is a question that has some interruptions in it while framing. A proper question is the correct form of the question without any disfluency.
Input: What did Guo Shoujing do to expedite famines, ack I mean Kublai, how did he expedite them?

What did Kublai do to expediate famines?