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

Example Input: When was no wait Who directed Life Itself?
Example Output: Who directed Life Itself?

Example Input: What is cost engineers no no scratch that what is an obvious source for cost engineers?
Example Output: What is an obvious source for cost engineers?

Example Input: Who is the vice-chair no the first chair of the IPCC?
Example Output:
Who was the first chair of the IPCC?