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

[EX Q]: Sentence: 'a red hydrant is sitting on the sidewalk in the city'. Replace the letter 'n' with 'r' in the sentence.
[EX A]: a red hydrart is sittirg or the sidewalk ir the city

[EX Q]: Sentence: 'a yellow fire truck parked in a parking lot'. Replace the letter 'a' with 'y' in the sentence.
[EX A]: y yellow fire truck pyrked in y pyrking lot

[EX Q]: Sentence: 'a caucasian women in running clothes sits on a picnic table talking on a cellphone'. Replace the letter 'n' with 'w' in the sentence.
[EX A]:
a caucasiaw womew iw ruwwiwg clothes sits ow a picwic table talkiwg ow a cellphowe