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

Example Input: Sentence: 'a man is on a bed with a cat and laptop computer'. Replace the letter 'e' with 'n' in the sentence.
Example Output: a man is on a bnd with a cat and laptop computnr

Example Input: Sentence: 'there are peoople standign next to a bike'. Replace the letter 'o' with 't' in the sentence.
Example Output: there are pettple standign next tt a bike

Example Input: Sentence: 'many people gathered on a sunny day flying kites'. Replace the letter 'e' with 'm' in the sentence.
Example Output:
many pmoplm gathmrmd on a sunny day flying kitms