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

Sentence: 'a crooked street sign on a damaged sidewalk'. Replace the letter 'm' with 'u' in the sentence.
a crooked street sign on a dauaged sidewalk

Sentence: 'a motorcycle that is in front of a car'. Replace the letter 'r' with 'p' in the sentence.
a motopcycle that is in fpont of a cap

Sentence: 'a man flying through the air while riding skis'. Replace the letter 'l' with 'a' in the sentence.

a man faying through the air whiae riding skis