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

[Q]: Sentence: 'a yellow fire truck parked in a parking lot'. Replace the letter 'a' with 'y' in the sentence.
[A]: y yellow fire truck pyrked in y pyrking lot


[Q]: Sentence: 'a family opens gifts in a room with their dog, while sitting on couches'. Replace the letter 's' with 'l' in the sentence.
[A]: a family openl giftl in a room with their dog, while litting on couchel


[Q]: Sentence: 'a police officer on a horse is riding down the street'. Replace the letter 'h' with 'a' in the sentence.
[A]:
a police officer on a aorse is riding down tae street