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

Sentence: 'a man is at bat at a baseball game with a crowd watching'. Replace the letter 't' with 'f' in the sentence.
a man is af baf af a baseball game wifh a crowd wafching

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

Sentence: 'a pan with pizza and its cutter on it sit on a stove top'. Replace the letter 'o' with 'e' in the sentence.
a pan with pizza and its cutter en it sit en a steve tep