TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a young man playing tennis and preparing to hit the ball'. Replace the letter 'e' with 'c' in the sentence.

SOLUTION: a young man playing tcnnis and prcparing to hit thc ball

PROBLEM: Sentence: 'a man eats food that is inside a banana peel'. Replace the letter 'n' with 'k' in the sentence.

SOLUTION: a mak eats food that is ikside a bakaka peel

PROBLEM: Sentence: 'a group of guys at a table with some wine'. Replace the letter 'a' with 'p' in the sentence.

SOLUTION:
p group of guys pt p tpble with some wine