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

Example Input: Sentence: 'a baseball player swings his bat at a pitch'. Replace the letter 's' with 'l' in the sentence.
Example Output: a baleball player lwingl hil bat at a pitch

Example Input: Sentence: 'a group of women are sitting at a table eating lunch'. Replace the letter 'e' with 'k' in the sentence.
Example Output: a group of womkn ark sitting at a tablk kating lunch

Example Input: Sentence: 'a black chair a lamp some pictures and a fan'. Replace the letter 'h' with 'a' in the sentence.
Example Output:
a black caair a lamp some pictures and a fan