TASK DEFINITION: Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
PROBLEM: How much do ctenophore er do rotifers act as when looking for a meal?

SOLUTION: How do rotifers act as when looking for a meal?

PROBLEM: When were ctenophore mnemiopsis leidyi introduced into The Black Sea and the Sea of Azov ahh actually I want to know when were fish larvae accidentally introduced into the Black Sea?

SOLUTION: When were fish larvae introduced into the Black Sea accidentally?

PROBLEM: What ethnic group no in what city or the Arabs the twelve largest ethnic group?

SOLUTION:
In what city or the Arabs the twelve largest ethnic group?