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

Ex Input:
When did Goldbach or wait Landau propose his four conjectural problems?

Ex Output:
When did Landau propose his four conjectural problems?


Ex Input:
Which hypothesis no conjecture holds that every even integer n greater than 2 can be expressed as a sum of two primes?

Ex Output:
Which conjecture holds that every even integer n greater than 2 can be expressed as a sum of two primes?


Ex Input:
How many er what is the name of the private day school for K-12 students the university runs?

Ex Output:
What is the name of the private day school for K-12 students the university runs?