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

Example Input: Sentence: 'a man getting ready to hit a ball at a baseball game'. Replace the letter 'n' with 'v' in the sentence.
Example Output: a mav gettivg ready to hit a ball at a baseball game

Example Input: Sentence: 'a baseball player up to bat that just hit the ball'. Replace the letter 'r' with 'o' in the sentence.
Example Output: a baseball playeo up to bat that just hit the ball

Example Input: Sentence: 'woman in red robe making a face in a kitchen'. Replace the letter 'e' with 't' in the sentence.
Example Output:
woman in rtd robt making a fact in a kitchtn