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

Example Input: Sentence: 'a kitchen in the midst of renovation is missing it's back-splash and lower cabinetry doors and drawers'. Replace the letter 'a' with 'g' in the sentence.
Example Output: g kitchen in the midst of renovgtion is missing it's bgck-splgsh gnd lower cgbinetry doors gnd drgwers

Example Input: Sentence: 'a person holding on to a black remote'. Replace the letter 'n' with 'h' in the sentence.
Example Output: a persoh holdihg oh to a black remote

Example Input: Sentence: 'a surfer riding a wave, in the ocean'. Replace the letter 'r' with 'n' in the sentence.
Example Output:
a sunfen niding a wave, in the ocean