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 fancy clock is lit up on the street'. Replace the letter 'o' with 'f' in the sentence.
[EX A]: a fancy clfck is lit up fn the street

[EX Q]: Sentence: 'a single giraffe standing in an open field'. Replace the letter 'l' with 'o' in the sentence.
[EX A]:
a singoe giraffe standing in an open fieod