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

Example Input: Sentence: 'the bus is trying to navigate though the london traffic'. Replace the letter 'a' with 'l' in the sentence.
Example Output: the bus is trying to nlviglte though the london trlffic

Example Input: Sentence: 'a clean and organized hotel bedroom with tv'. Replace the letter 'w' with 'p' in the sentence.
Example Output: a clean and organized hotel bedroom pith tv

Example Input: Sentence: 'large adult cat sitting on a wooden stump'. Replace the letter 'n' with 'q' in the sentence.
Example Output:
large adult cat sittiqg oq a woodeq stump