instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a person jumping up in the air on a snowboard'. Replace the letter 'r' with 'o' in the sentence.
answer:
a peoson jumping up in the aio on a snowboaod


question:
Sentence: 'a person on a snow board flying through the air'. Replace the letter 'f' with 'n' in the sentence.
answer:
a person on a snow board nlying through the air


question:
Sentence: 'a man standing in the snow with his skiis'. Replace the letter 'o' with 'w' in the sentence.
answer:

a man standing in the snww with his skiis