TASK DEFINITION: Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
PROBLEM: How many soldiers no Khitan Tumens were there?

SOLUTION: How many Khitan Tumens were there?

PROBLEM: Who is the economist no vice-chair of the IPCC?

SOLUTION: Who is the vice-chair of the IPCC?

PROBLEM: What is the conventional method to measure Lake Constance or no make that the Rhine?

SOLUTION:
What is the conventional method to measure the Rhine?