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

[Q]: Sentence: 'subway train approaching the platform of a subway station'. Replace the letter 'y' with 'c' in the sentence.
[A]: subwac train approaching the platform of a subwac station


[Q]: Sentence: 'a hipster riding a skateboard up the side of a wall'. Replace the letter 's' with 'm' in the sentence.
[A]: a hipmter riding a mkateboard up the mide of a wall


[Q]: Sentence: 'two men stand smiling next to each other in the grass'. Replace the letter 'e' with 'm' in the sentence.
[A]:
two mmn stand smiling nmxt to mach othmr in thm grass