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

Example Input: Sentence: 'an image of a small galley-style kitchen pointed towards a skinny door'. Replace the letter 's' with 'i' in the sentence.
Example Output: an image of a imall galley-ityle kitchen pointed towardi a ikinny door

Example Input: Sentence: 'a person is waiting for a pizza to come out of an oven fired grill'. Replace the letter 's' with 'k' in the sentence.
Example Output: a perkon ik waiting for a pizza to come out of an oven fired grill

Example Input: Sentence: 'a man after he just hit a tennis ball'. Replace the letter 'r' with 'm' in the sentence.
Example Output:
a man aftem he just hit a tennis ball