instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a boy is sitting at a dinner table with his food'. Replace the letter 't' with 'r' in the sentence.
answer:
a boy is sirring ar a dinner rable wirh his food


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 bathroom with multiple urinals and mirrors'. Replace the letter 'a' with 'v' in the sentence.
answer:

v bvthroom with multiple urinvls vnd mirrors