TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'three men in a park playing a sport'. Replace the letter 'p' with 'w' in the sentence.

SOLUTION: three men in a wark wlaying a swort

PROBLEM: Sentence: 'a toaster oven painted on the side of a wall'. Replace the letter 'e' with 'p' in the sentence.

SOLUTION: a toastpr ovpn paintpd on thp sidp of a wall

PROBLEM: Sentence: 'a couple of elephants standing in the middle of a forest'. Replace the letter 'e' with 'n' in the sentence.

SOLUTION:
a coupln of nlnphants standing in thn middln of a fornst