TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a man in blazer holding a tie over his eyes'. Replace the letter 's' with 'e' in the sentence.

SOLUTION: a man in blazer holding a tie over hie eyee

PROBLEM: Sentence: 'a house cat sits on an oven door, sniffing the oven racks inside'. Replace the letter 'i' with 'y' in the sentence.

SOLUTION: a house cat syts on an oven door, snyffyng the oven racks ynsyde

PROBLEM: Sentence: 'a group of navy cooks standing around a giant cake'. Replace the letter 'o' with 'k' in the sentence.

SOLUTION:
a grkup kf navy ckkks standing arkund a giant cake