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

Ex Input:
Where no rather when was UNEP founded?

Ex Output:
When was UNEP founded?


Ex Input:
What kind er why did the university eventually leave the conference?

Ex Output:
Why did the university eventually leave the conference?


Ex Input:
How many names did Rinchinbal use or rather how old was Toghun Temur when he became emperor?

Ex Output:
How old was Toghun Temur when he became emperor?