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

Example Input: Sentence: 'a dog drinking out of a bowl of water'. Replace the letter 'w' with 'k' in the sentence.
Example Output: a dog drinking out of a bokl of kater

Example Input: Sentence: 'a couple of giraffes being feed by people at the zoo'. Replace the letter 't' with 'v' in the sentence.
Example Output: a couple of giraffes being feed by people av vhe zoo

Example Input: Sentence: 'a large bed with striped sheets on top of it'. Replace the letter 'h' with 'd' in the sentence.
Example Output:
a large bed witd striped sdeets on top of it