TASK DEFINITION: Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
PROBLEM: Where was or no rather who was Masovia II of Boleslaw?

SOLUTION: Who was Masovia II of Boleslaw?

PROBLEM: Where is the rock, no, gravel from that is found in xenoliths?

SOLUTION: Where is the gravel from that is found in xenoliths?

PROBLEM: Why are oceanic species tough no coastal species?

SOLUTION:
Why are coastal species tough?