instruction:
In this task, you need to replace a letter in the sentence with another given letter.
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 cat sits on the floor next to a purse'. Replace the letter 'a' with 'b' in the sentence.
answer:
b cbt sits on the floor next to b purse


question:
Sentence: 'a white plate topped with two sandwich halves and a pile of potatoes chips'. Replace the letter 'o' with 'x' in the sentence.
answer:

a white plate txpped with twx sandwich halves and a pile xf pxtatxes chips