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

[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 open entrance leading to a set of closed doors'. Replace the letter 'd' with 'f' in the sentence.
[EX A]: a open entrance leafing to a set of closef foors

[EX Q]: Sentence: 'a crowd of people riding on top of snow covered ground'. Replace the letter 'p' with 'l' in the sentence.
[EX A]:
a crowd of leolle riding on tol of snow covered ground