In this task, you need to replace a letter in the sentence with another given letter.

[EX Q]: Sentence: 'red helicopter with landing wheels flying in the sky'. Replace the letter 'h' with 'y' in the sentence.
[EX A]: red yelicopter wity landing wyeels flying in tye sky

[EX Q]: Sentence: 'a large clock tower next to a building on a street'. Replace the letter 'c' with 'n' in the sentence.
[EX A]: a large nlonk tower next to a building on a street

[EX Q]: Sentence: 'a row of park benches sitting next to a park'. Replace the letter 'b' with 'c' in the sentence.
[EX A]:
a row of park cenches sitting next to a park