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

[EX Q]: When did What centuries did the Roman times take place within?
[EX A]: What centuries did the Roman times take place within?

[EX Q]: What do computers use to subsurface no coal to reconstruct?
[EX A]: What do computers use coal to reconstruct?

[EX Q]: What is a kind of attraction scratch that what is a quarter of UNESCO filled with?
[EX A]:
What is a quarter of UNESCO filled with?