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

Example Input: In which century by what term is a type of advocacy of empire known no do most consider the beginning of imperialism?
Example Output:  In which century do most consider the beginning of imperialism?

Example Input: What demands uh instead position did the tax collector that arrested Thoreau get?
Example Output: What position did the tax collector that arrested Thoreau get?

Example Input: What do petrologists no what do unstable isotope studies indicate?
Example Output:
What do unstable isotope studies indicate?