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 professors oh um students did Charles William Eliot teach throughout his tenure at Harvard?

SOLUTION: How many students did Charles William Eliot teach throughout his tenure at Harvard?

PROBLEM: What suite uses UDP no sorry what responsibility do the hosts have in a virtual call system?

SOLUTION: In a virtual call system, the hosts have what responsibility?

PROBLEM: In what century did all of the dead branches dry up no sorry I mean when the amount of forests on the flood plain increased?

SOLUTION:
In what century did the amount of forests on the flood plain increase?