Detailed Instructions: Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
See one example below:
Problem: Who did the Han Chinese want to help the Khitan no I mean the Mongols fight?
Solution: Who did the Han Chinese want to help the Mongols fight?
Explanation: The input initially means Khitan and then changes to Mongols, hence this is correct.

Problem: When did, no better yet, which theorem states that every large odd integer can be written as a prime summed with a semiprime?
Solution:
Which theorem states that every large odd integer can be written as a prime summed with a semiprime?