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

Ex Input:
When did Why did Vilnius become the capital of the Commonwealth?

Ex Output:
Why did Vilnius become the capital of the Commonwealth?


Ex Input:
When do excuse me Who do states and governments often work in lockstep with?

Ex Output:
Who do states and governments often work in lockstep with?


Ex Input:
Who is no what author is best known for his book The Metaphysical Club?

Ex Output:

What author is best known for his book The Metaphysical Club?