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

Example Input: Sentence: 'a person standing on some skis going through the snow'. Replace the letter 'o' with 'l' in the sentence.
Example Output: a persln standing ln slme skis gling thrlugh the snlw

Example Input: Sentence: 'a pizza sitting on top of a metal pizza pan'. Replace the letter 'p' with 't' in the sentence.
Example Output: a tizza sitting on tot of a metal tizza tan

Example Input: Sentence: 'a desk topped with desktop monitors next to a mouse'. Replace the letter 'i' with 'p' in the sentence.
Example Output:
a desk topped wpth desktop monptors next to a mouse