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

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

Example Input: What did, my bad, Who did Abercrombie replace as captain in chief?
Example Output: Who did Abercrombie replace as captain in chief?

Example Input: When or no rather who wrote that imperialism is the lowest stage of capitalism?
Example Output:
 Who wrote that imperialism is the lowest stage of capitalism?