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

[EX Q]: Sentence: 'a group of people are using their laptops in the dark'. Replace the letter 'p' with 'b' in the sentence.
[EX A]: a groub of beoble are using their labtobs in the dark

[EX Q]: Sentence: 'a large white sign with black lettering  leaning against a metal fence'. Replace the letter 'e' with 'j' in the sentence.
[EX A]: a largj whitj sign with black ljttjring  ljaning against a mjtal fjncj

[EX Q]: Sentence: 'a giraffe standing alone with a low fence behind it'. Replace the letter 't' with 'o' in the sentence.
[EX A]:
a giraffe soanding alone wioh a low fence behind io