Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.

[EX Q]: When do um where do most students at the Groton School come from?
[EX A]: Where do most students at the Groton School come from?

[EX Q]: How is it or rather what is it estimated that about half of all variation in homicide rates can be accounted for by?
[EX A]: What is it estimated that about half of all variation in homicide rates can be accounted for by?

[EX Q]: Which no who was the developer of the Hamming battery?
[EX A]:
Who was the developer of the Hamming battery?