TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a man that is holding a remote to a game'. Replace the letter 'a' with 'z' in the sentence.

SOLUTION: z mzn thzt is holding z remote to z gzme

PROBLEM: Sentence: 'street sign titled kittery maine state line in green'. Replace the letter 'e' with 'r' in the sentence.

SOLUTION: strrrt sign titlrd kittrry mainr statr linr in grrrn

PROBLEM: Sentence: 'a small three-piece bathroom with toilet, tub shower, and sink'. Replace the letter 'r' with 'a' in the sentence.

SOLUTION:
a small thaee-piece bathaoom with toilet, tub showea, and sink