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

Ex Input:
Sentence: 'a group of women are sitting at a table eating lunch'. Replace the letter 'e' with 'k' in the sentence.

Ex Output:
a group of womkn ark sitting at a tablk kating lunch


Ex Input:
Sentence: 'a teddy bear playing a drum and a teddy bear playing a guitar'. Replace the letter 'd' with 'm' in the sentence.

Ex Output:
a temmy bear playing a mrum anm a temmy bear playing a guitar


Ex Input:
Sentence: 'a black cat is on a laptop computer'. Replace the letter 'l' with 'm' in the sentence.

Ex Output:

a bmack cat is on a maptop computer