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

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 two zebras standing out in the field'. Replace the letter 'h' with 'i' in the sentence.
Example Output: tie two zebras standing out in tie field

Example Input: Sentence: 'a man swinging a baseball bat on a field'. Replace the letter 'l' with 'p' in the sentence.
Example Output:
a man swinging a basebapp bat on a fiepd