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: Wht do rock units what happens deeper in the earth I mean under what type of compression do they become thicker and shorten?

SOLUTION: Rock units become thicker and shorten when placed under this type of compression. 

PROBLEM: What organization er what is the UN's climate change treaty?

SOLUTION:
What is the UN's climate change treaty?