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

Input: Consider Input: Sentence: 'a lonley giraffe is making a trek in the wild'. Replace the letter 'r' with 'h' in the sentence.

Output: a lonley gihaffe is making a thek in the wild

Input: Consider Input: Sentence: 'a dog drinking out of a bowl of water'. Replace the letter 'w' with 'k' in the sentence.

Output: a dog drinking out of a bokl of kater

Input: Consider Input: Sentence: 'a chair that is sitting in front of a desk'. Replace the letter 'i' with 'k' in the sentence.
Output: a chakr that ks skttkng kn front of a desk