instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'subway train approaching the platform of a subway station'. Replace the letter 'y' with 'c' in the sentence.
answer:
subwac train approaching the platform of a subwac station


question:
Sentence: 'a man stands next to a basketball as it sits on the floor'. Replace the letter 'n' with 'o' in the sentence.
answer:
a mao staods oext to a basketball as it sits oo the floor


question:
Sentence: 'a young woman brushing her teeth with a yellow handled toothbrush'. Replace the letter 'r' with 'd' in the sentence.
answer:

a young woman bdushing hed teeth with a yellow handled toothbdush