TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a person holding a green cell phone in a classroom with many desks'. Replace the letter 'k' with 'w' in the sentence.

SOLUTION: a person holding a green cell phone in a classroom with many desws

PROBLEM: Sentence: 'a crooked street sign on a damaged sidewalk'. Replace the letter 'm' with 'u' in the sentence.

SOLUTION: a crooked street sign on a dauaged sidewalk

PROBLEM: Sentence: 'a modern bathroom with two sinks and a television on the wall'. Replace the letter 'n' with 'm' in the sentence.

SOLUTION:
a moderm bathroom with two simks amd a televisiom om the wall