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

Ex Input:
When was the first class taught at the University of Texas no sorry Chicago?

Ex Output:
What year was the first class taught at the University of Chicago?


Ex Input:
What concept did philosophers in antiquity use in the study of stationary and moving objects or rather to study simple machines?

Ex Output:
What concept did philosophers in antiquity use to study simple machines?


Ex Input:
What did um when was al-Nimeiry overthrown?

Ex Output:
When was al-Nimeiry overthrown?