TASK DEFINITION: Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
PROBLEM: What can or no make that where can a tribute to the fall of Katyn be found?

SOLUTION: Where can a tribute to the fall of Katyn be found?

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: Who explored Ohio territory in 1574 sorry 1570?

SOLUTION:
Who explored Ohio territory in 1570?