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

[EX Q]: Sentence: 'busy city street with pedestrians and cars with lights all around'. Replace the letter 'r' with 'k' in the sentence.
[EX A]: busy city stkeet with pedestkians and caks with lights all akound

[EX Q]: Sentence: 'two giraffe standing in an enclosure at the zoo next to a  tree'. Replace the letter 'n' with 'g' in the sentence.
[EX A]: two giraffe stagdigg ig ag egclosure at the zoo gext to a  tree

[EX Q]: Sentence: 'a man racing down a mountain on a pair of skis'. Replace the letter 'o' with 'm' in the sentence.
[EX A]:
a man racing dmwn a mmuntain mn a pair mf skis

