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

[EX Q]: Sentence: 'the bus is trying to navigate though the london traffic'. Replace the letter 'a' with 'l' in the sentence.
[EX A]: the bus is trying to nlviglte though the london trlffic

[EX Q]: Sentence: 'a person holding a small remote key chain'. Replace the letter 'n' with 'j' in the sentence.
[EX A]: a persoj holdijg a small remote key chaij

[EX Q]: Sentence: 'a half-empty box of donuts of various kinds'. Replace the letter 'v' with 't' in the sentence.
[EX A]:
a half-empty box of donuts of tarious kinds