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

[EX Q]: Sentence: 'a train traveling through a dark tunnel next to green brush.'. Replace the letter 'r' with 'e' in the sentence.
[EX A]: a teain teaveling theough a daek tunnel next to geeen beush.

[EX Q]: Sentence: 'a motorcycle that is in front of a car'. Replace the letter 'r' with 'p' in the sentence.
[EX A]: a motopcycle that is in fpont of a cap

[EX Q]: Sentence: 'a desk with a book and television on top'. Replace the letter 'h' with 'b' in the sentence.
[EX A]:
a desk witb a book and television on top