TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a couch, footrest, tv and other furniture are arranged in a living room'. Replace the letter 'o' with 'g' in the sentence.

SOLUTION: a cguch, fggtrest, tv and gther furniture are arranged in a living rggm

PROBLEM: Sentence: 'a man taking a photo of food on a table'. Replace the letter 't' with 'h' in the sentence.

SOLUTION: a man haking a phoho of food on a hable

PROBLEM: Sentence: 'this is a close up picture of a keyboard and ear pieces'. Replace the letter 'a' with 'b' in the sentence.

SOLUTION:
this is b close up picture of b keybobrd bnd ebr pieces