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 woman walks by with a large suitcase and a polka dot umbrella'. Replace the letter 'e' with 'n' in the sentence.
[EX A]: a woman walks by with a largn suitcasn and a polka dot umbrnlla

[EX Q]: Sentence: 'the two older buses are parked in the lot next to the building'. Replace the letter 't' with 'm' in the sentence.
[EX A]:
mhe mwo older buses are parked in mhe lom nexm mo mhe building