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: How is it or rather what is it estimated that about half of all variation in homicide rates can be accounted for by?

What is it estimated that about half of all variation in homicide rates can be accounted for by?