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

Input: Consider Input: Sentence: 'a couple of giraffe standing next to each other near a fence'. Replace the letter 'f' with 'j' in the sentence.

Output: a couple oj girajje standing next to each other near a jence

Input: Consider Input: Sentence: 'the person rides down the path atop the pink skateboard'. Replace the letter 'e' with 'c' in the sentence.

Output: thc pcrson ridcs down thc path atop thc pink skatcboard

Input: Consider Input: Sentence: 'two soccer players pushing each other for the ball'. Replace the letter 'y' with 't' in the sentence.
Output: two soccer platers pushing each other for the ball