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

[EX Q]: Sentence: 'a person flying a kite on the beach  between some trees'. Replace the letter 's' with 'k' in the sentence.
[EX A]: a perkon flying a kite on the beach  between kome treek

[EX Q]: Sentence: 'traffic congestion with cars and an electric tram'. Replace the letter 'a' with 'k' in the sentence.
[EX A]: trkffic congestion with ckrs knd kn electric trkm

[EX Q]: Sentence: 'a traffic light with four signals sitting next to a tall building'. Replace the letter 'i' with 'j' in the sentence.
[EX A]:
a traffjc ljght wjth four sjgnals sjttjng next to a tall bujldjng