TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a big bowl of brown food halfway in a small oven'. Replace the letter 'v' with 'k' in the sentence.

SOLUTION: a big bowl of brown food halfway in a small oken

PROBLEM: Sentence: 'three laptops are turned on lined up on a table'. Replace the letter 't' with 'g' in the sentence.

SOLUTION: ghree lapgops are gurned on lined up on a gable

PROBLEM: Sentence: 'a metal bowl filled with lots of red apples'. Replace the letter 'b' with 'x' in the sentence.

SOLUTION:
a metal xowl filled with lots of red apples