instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a man holds his hands out in pursuit of a disk'. Replace the letter 'n' with 'o' in the sentence.
answer:
a mao holds his haods out io pursuit of a disk


question:
Sentence: 'a couple walking down a sidewalk next to some graffiti'. Replace the letter 'a' with 'y' in the sentence.
answer:
y couple wylking down y sidewylk next to some gryffiti


question:
Sentence: 'a woman is throwing a frisbee on a course'. Replace the letter 'r' with 's' in the sentence.
answer:

a woman is thsowing a fsisbee on a cousse