TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a child taking the paper off a box sitting on the floor'. Replace the letter 'c' with 'b' in the sentence.

SOLUTION: a bhild taking the paper off a box sitting on the floor

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: 'large clock on post near street in evening'. Replace the letter 'k' with 'v' in the sentence.

SOLUTION:
large clocv on post near street in evening