instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a person is standing in the snow in skis'. Replace the letter 'g' with 'x' in the sentence.
answer:
a person is standinx in the snow in skis

question:
Sentence: 'a teddy bear dressed in denim is laying on a floor'. Replace the letter 'i' with 'd' in the sentence.
answer:
a teddy bear dressed dn dendm ds laydng on a floor

question:
Sentence: 'a white nerd with a tie around his sweater'. Replace the letter 'i' with 'q' in the sentence.
answer:
a whqte nerd wqth a tqe around hqs sweater