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

Sentence: 'a batter is batting at a baseball game'. Replace the letter 'b' with 'e' in the sentence.
a eatter is eatting at a easeeall game

Sentence: 'a red hydrant is sitting on the sidewalk in the city'. Replace the letter 'n' with 'r' in the sentence.
a red hydrart is sittirg or the sidewalk ir the city

Sentence: 'one cat is laying on another cat that sits on the bench'. Replace the letter 'n' with 'x' in the sentence.

oxe cat is layixg ox axother cat that sits ox the bexch