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

Example Input: Sentence: 'a white kitchen with bottles and pots on the counter'. Replace the letter 'a' with 'p' in the sentence.
Example Output: p white kitchen with bottles pnd pots on the counter

Example Input: Sentence: 'this refrigerator is covered in stickers on it'. Replace the letter 't' with 'h' in the sentence.
Example Output: hhis refrigerahor is covered in shickers on ih

Example Input: Sentence: 'a flower shop with several varieties of flowers and gifts on display'. Replace the letter 'e' with 'z' in the sentence.
Example Output:
a flowzr shop with szvzral variztizs of flowzrs and gifts on display