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

[Q]: Sentence: 'a man is on a saddled horse with reins'. Replace the letter 's' with 'o' in the sentence.
[A]: a man io on a oaddled horoe with reino


[Q]: Sentence: 'a couple of white street signs sitting on top of a pole'. Replace the letter 'n' with 't' in the sentence.
[A]: a couple of white street sigts sittitg ot top of a pole


[Q]: Sentence: 'two zebras grazing on grass behind a wire fence'. Replace the letter 'a' with 'q' in the sentence.
[A]:
two zebrqs grqzing on grqss behind q wire fence