TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'red helicopter with landing wheels flying in the sky'. Replace the letter 'h' with 'y' in the sentence.

SOLUTION: red yelicopter wity landing wyeels flying in tye sky

PROBLEM: Sentence: 'a single person is working in the cluttered kitchen'. Replace the letter 'n' with 'e' in the sentence.

SOLUTION: a siegle persoe is workieg ie the cluttered kitchee

PROBLEM: Sentence: 'the baby elephant is taking a cooling mud bath'. Replace the letter 'i' with 's' in the sentence.

SOLUTION:
the baby elephant ss taksng a coolsng mud bath