instruction:
In this task, you need to replace a letter in the sentence with another given letter.
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: 'large stuffed toy bear sitting next to tree with assortment of bagged items'. Replace the letter 'y' with 'u' in the sentence.
answer:
large stuffed tou bear sitting next to tree with assortment of bagged items


question:
Sentence: 'a tall white building under a cloudy gray sky'. Replace the letter 'e' with 'o' in the sentence.
answer:

a tall whito building undor a cloudy gray sky