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: 'nine geese flying south for the winter months'. Replace the letter 't' with 'f' in the sentence.
answer:
nine geese flying soufh for fhe winfer monfhs


question:
Sentence: 'line of buses parked on the side of a city road'. Replace the letter 'y' with 'd' in the sentence.
answer:

line of buses parked on the side of a citd road