Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
One example: Who did the Han Chinese want to help the Khitan no I mean the Mongols fight?
Solution is here: 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.

Now, solve this: In the NY Times, the that's not it at Harvard before 2008, how many classes outside of their concentration were full time undergraduate students required to complete?
Solution:
Between 1978 an d2008 four year full time undergraduate students were required to complete how many classes outside of their concentration?