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

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 won the battle of Lake Niagara no wait Lake George rather?
Example Output: Who won the battle of Lake George?

Example Input: What are bacteria unable to secrete no sorry tell me what does the failure of a pathogen depend on?
Example Output:
What does the failure of a pathogen depend on?