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

Ex Input:
Sentence: 'adult man on grassy field playing disc game'. Replace the letter 'n' with 'l' in the sentence.

Ex Output:
adult mal ol grassy field playilg disc game

Ex Input:
Sentence: 'a woman is snowboarding down a snowy hill'. Replace the letter 'l' with 'b' in the sentence.

Ex Output:
a woman is snowboarding down a snowy hibb

Ex Input:
Sentence: 'very many ripe bananas with a price label on'. Replace the letter 'o' with 'n' in the sentence.

Ex Output:
very many ripe bananas with a price label nn