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

Example Input: Sentence: 'a police officer on a horse is riding down the street'. Replace the letter 'h' with 'a' in the sentence.
Example Output: a police officer on a aorse is riding down tae street

Example Input: Sentence: 'the tennis player throws her racket in celebration'. Replace the letter 't' with 'l' in the sentence.
Example Output: lhe lennis player lhrows her rackel in celebralion

Example Input: Sentence: 'the paint is peeling off the wall in the room'. Replace the letter 'l' with 'c' in the sentence.
Example Output:
the paint is peecing off the wacc in the room