TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'people walk through a local fruit market in a city'. Replace the letter 'e' with 'n' in the sentence.

SOLUTION: pnopln walk through a local fruit marknt in a city

PROBLEM: Sentence: 'a suitcase is sitting on a sidewalk near trees'. Replace the letter 's' with 'd' in the sentence.

SOLUTION: a duitcade id ditting on a didewalk near treed

PROBLEM: Sentence: 'the entree on the long plate is in the middle of the wooden table'. Replace the letter 'h' with 'z' in the sentence.

SOLUTION:
tze entree on tze long plate is in tze middle of tze wooden table