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

Sentence: 'a dog laying in front of a horses stall with the horse peeking over the half door'. Replace the letter 'a' with 'b' in the sentence.
b dog lbying in front of b horses stbll with the horse peeking over the hblf door

Sentence: 'a fancy clock is lit up on the street'. Replace the letter 'o' with 'f' in the sentence.
a fancy clfck is lit up fn the street

Sentence: 'a cat laying on the ground next to a pair of shoes'. Replace the letter 'x' with 'w' in the sentence.

a cat laying on the ground newt to a pair of shoes