instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a police officer on a horse is riding down the street'. Replace the letter 'h' with 'a' in the sentence.
answer:
a police officer on a aorse is riding down tae street


question:
Sentence: 'a white stove top oven sitting in a kitchen'. Replace the letter 'k' with 'b' in the sentence.
answer:
a white stove top oven sitting in a bitchen


question:
Sentence: 'a person flying a para shoot through the air'. Replace the letter 'r' with 'd' in the sentence.
answer:

a pedson flying a pada shoot thdough the aid