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

Example Input: What can an old, ill man do or rather not do?
Example Output: What can and old, ill man not do?

Example Input: Wht do rock units what happens deeper in the earth I mean under what type of compression do they become thicker and shorten?
Example Output: Rock units become thicker and shorten when placed under this type of compression. 

Example Input: In between French and British, who dominated no what groups controlled land?
Example Output:
In between French and British, what groups controlled land?