TASK DEFINITION: Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
PROBLEM: What was the theory that sediment no the Royal Society presented?

SOLUTION: What was the theory the Royal Society presented?

PROBLEM: What is cost engineers no no scratch that what is an obvious source for cost engineers?

SOLUTION: What is an obvious source for cost engineers?

PROBLEM: When was tell me about the source of the Rhine I mean the Last Glacial Maximum?

SOLUTION:
When was the Last Glacial Maximum?