TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a metal tray holding various vegetables that include potatoes and onions'. Replace the letter 'h' with 'e' in the sentence.

SOLUTION: a metal tray eolding various vegetables teat include potatoes and onions

PROBLEM: Sentence: 'a woman gives a thumbs up sign while sitting in front of a sandwich'. Replace the letter 's' with 'h' in the sentence.

SOLUTION: a woman giveh a thumbh up hign while hitting in front of a handwich

PROBLEM: Sentence: 'young man wearing shorts throws a frisbee among trees'. Replace the letter 'o' with 'f' in the sentence.

SOLUTION:
yfung man wearing shfrts thrfws a frisbee amfng trees