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

[EX Q]: Sentence: 'a geoup of people on bicycles coming down a street'. Replace the letter 'i' with 'x' in the sentence.
[EX A]: a geoup of people on bxcycles comxng down a street

[EX Q]: Sentence: 'a zebra is eating hay in a fenced enclosure'. Replace the letter 'e' with 'i' in the sentence.
[EX A]: a zibra is iating hay in a fincid inclosuri

[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