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

Example Input: What happens before the contractors no um the foundation is dug and when a final inspection is passed?
Example Output: What happens before the foundation is dug and when a final inspection is passed?

Example Input: When do excuse me Who do states and governments often work in lockstep with?
Example Output: Who do states and governments often work in lockstep with?

Example Input: What does it mean when a harmonic or rather a Basel series diverges?
Example Output:
What does it mean when a Basel series diverges?