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

Ex Input:
Sentence: 'a person jumping up in the air on a snowboard'. Replace the letter 'r' with 'o' in the sentence.

Ex Output:
a peoson jumping up in the aio on a snowboaod

Ex Input:
Sentence: 'a bed with white comforter and two black stiletto heels'. Replace the letter 'h' with 's' in the sentence.

Ex Output:
a bed wits wsite comforter and two black stiletto seels

Ex Input:
Sentence: 'a bed room with a neatly made bed'. Replace the letter 'y' with 'b' in the sentence.

Ex Output:
a bed room with a neatlb made bed