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

Example Input: Sentence: 'a dog wearing a hat on top of it's head'. Replace the letter 'g' with 'o' in the sentence.
Example Output: a doo wearino a hat on top of it's head

Example Input: Sentence: 'the entree on the long plate is in the middle of the wooden table'. Replace the letter 'h' with 'z' in the sentence.
Example Output: tze entree on tze long plate is in tze middle of tze wooden table

Example Input: Sentence: 'a dollhouse kitchen set includes a stove, counter, and cookware'. Replace the letter 's' with 'u' in the sentence.
Example Output:
a dollhouue kitchen uet includeu a utove, counter, and cookware