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

Ex Input:
What term what drove residents to quieter suburban housing?

Ex Output:
What drove residents to quieter suburban housing?


Ex Input:
What are cestida named?

Ex Output:
What are cestida called?


Ex Input:
Where did Daidu no Kublai shorten the Grand Canal to?

Ex Output:
Where did Kublai shorten the Grand Canal to?