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

Q: Sentence: 'a baseball player swinging a bat at a ball'. Replace the letter 's' with 'n' in the sentence.

A: a baneball player nwinging a bat at a ball
****
Q: 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.

A: b dog lbying in front of b horses stbll with the horse peeking over the hblf door
****
Q: Sentence: 'young boy leaping into air with tennis racket with dog below him'. Replace the letter 't' with 'r' in the sentence.

A:
young boy leaping inro air wirh rennis racker wirh dog below him
****