TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a man wearing a hat has his cell phone to his ear'. Replace the letter 'g' with 'w' in the sentence.

SOLUTION: a man wearinw a hat has his cell phone to his ear

PROBLEM: Sentence: 'a teddy bear playing a drum and a teddy bear playing a guitar'. Replace the letter 'd' with 'm' in the sentence.

SOLUTION: a temmy bear playing a mrum anm a temmy bear playing a guitar

PROBLEM: Sentence: 'a frozen cheese pizza with a  slice being pulled from it'. Replace the letter 'b' with 'c' in the sentence.

SOLUTION:
a frozen cheese pizza with a  slice ceing pulled from it