TASK DEFINITION: Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
PROBLEM: When was the plague no who fought in the great Northern war?

SOLUTION: Who fought in the great Northern war?

PROBLEM: What was the RAND no the Report R-2626?

SOLUTION: What was Report R-2626?

PROBLEM: Who was the creator no wait created ARPANET?

SOLUTION:
Who created ARPANET?