TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a group of men sitting at a desk with lap top computers'. Replace the letter 'p' with 'z' in the sentence.

SOLUTION: a grouz of men sitting at a desk with laz toz comzuters

PROBLEM: Sentence: 'the view from inside the water looking landward at the beach'. Replace the letter 'a' with 's' in the sentence.

SOLUTION: the view from inside the wster looking lsndwsrd st the besch

PROBLEM: Sentence: 'a room with several boxes, containers and loose objects'. Replace the letter 'v' with 'f' in the sentence.

SOLUTION:
a room with seferal boxes, containers and loose objects