In this task, you need to replace a letter in the sentence with another given letter.

[EX Q]: Sentence: 'a woman is talking on her white phone'. Replace the letter 'w' with 'r' in the sentence.
[EX A]: a roman is talking on her rhite phone

[EX Q]: Sentence: 'a group of men sitting at a desk with lap top computers'. Replace the letter 'p' with 'z' in the sentence.
[EX A]: a grouz of men sitting at a desk with laz toz comzuters

[EX Q]: Sentence: 'a man standing in front of a large flat screen tv'. Replace the letter 'f' with 'j' in the sentence.
[EX A]:
a man standing in jront oj a large jlat screen tv