instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a boy taking a nap with his dog on a bed'. Replace the letter 'o' with 'i' in the sentence.
answer:
a biy taking a nap with his dig in a bed


question:
Sentence: 'a black and white photo of a bird clouds sand and water'. Replace the letter 'b' with 'p' in the sentence.
answer:
a plack and white photo of a pird clouds sand and water


question:
Sentence: 'small empty boat on water with birds perched on top'. Replace the letter 'y' with 'v' in the sentence.
answer:

small emptv boat on water with birds perched on top