TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a crooked street sign on a damaged sidewalk'. Replace the letter 'm' with 'u' in the sentence.

SOLUTION: a crooked street sign on a dauaged sidewalk

PROBLEM: Sentence: 'a group of people riding on top of snow boarding equipment'. Replace the letter 'e' with 'x' in the sentence.

SOLUTION: a group of pxoplx riding on top of snow boarding xquipmxnt

PROBLEM: Sentence: 'black and white photo of a man with a tennis racket'. Replace the letter 'o' with 'y' in the sentence.

SOLUTION:
black and white phyty yf a man with a tennis racket