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: 'there is a piece of a cake on the plate and a cup of drink'. Replace the letter 'r' with 'u' in the sentence.
theue is a piece of a cake on the plate and a cup of duink

Sentence: 'a person sitting on the ground with a dog'. Replace the letter 't' with 'i' in the sentence.

a person siiiing on ihe ground wiih a dog