instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a man standing on a tennis court holding a tennis racquet'. Replace the letter 'c' with 'y' in the sentence.
answer:
a man standing on a tennis yourt holding a tennis rayquet


question:
Sentence: 'two children struggle over a bat in their playroom'. Replace the letter 't' with 'v' in the sentence.
answer:
vwo children svruggle over a bav in vheir playroom


question:
Sentence: 'a man and a little boy sleeping together in a bed'. Replace the letter 'i' with 'z' in the sentence.
answer:

a man and a lzttle boy sleepzng together zn a bed