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: How long no When is the oldest armed seal of Sigilium from?
Example Output: When is the oldest armed seal of Sigilium from?

Example Input: What was er how much British military was in South America at start of War?
Example Output:
How much British military was in South America at start of War?