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

Ex Input:
Sentence: 'a man sitting at a table and using his laptop'. Replace the letter 'd' with 'o' in the sentence.

Ex Output:
a man sitting at a table ano using his laptop

Ex Input:
Sentence: 'a person lays on the inside of a suitcase'. Replace the letter 'i' with 'l' in the sentence.

Ex Output:
a person lays on the lnslde of a sultcase

Ex Input:
Sentence: 'a woman in a white shirt is pulling her suitcases'. Replace the letter 'u' with 'p' in the sentence.

Ex Output:
a woman in a white shirt is pplling her spitcases