Given the task definition and input, reply with output. 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.

Who did Shi Gang marry, I mean what kind of interethnic marriage became common in the Jin dynasty?

What kind of interethnic marriage became common in the Jin dynasty?