TASK DEFINITION: Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
PROBLEM: What type of parties ugh sorry committees exist in the fifth Session?

SOLUTION: What type of committees exist in the fifth Session?

PROBLEM: Where did Mongke Khan attack the Song dynasty or rather where did he defend it?

SOLUTION:  Where did Mongke Khan defend the Song dynasty?

PROBLEM: What was the theory that sediment no the Royal Society presented?

SOLUTION:
What was the theory the Royal Society presented?