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

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
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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
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Q: Sentence: 'a child reading a book with an angry birds plushie'. Replace the letter 'n' with 'f' in the sentence.

A:
a child readifg a book with af afgry birds plushie
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