In this task, you need to replace a letter in the sentence with another given letter.

Sentence: 'a person is riding a motorcycle as part of some kind of performance'. Replace the letter 'm' with 'a' in the sentence.
a person is riding a aotorcycle as part of soae kind of perforaance

Sentence: 'a pizza sitting on top of a metal pizza pan'. Replace the letter 'p' with 't' in the sentence.
a tizza sitting on tot of a metal tizza tan

Sentence: 'a purple umbrella lying on the green water'. Replace the letter 't' with 'v' in the sentence.

a purple umbrella lying on vhe green waver