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

[EX Q]: Sentence: 'a police officer on a horse is riding down the street'. Replace the letter 'h' with 'a' in the sentence.
[EX A]: a police officer on a aorse is riding down tae street

[EX Q]: Sentence: 'street sign titled kittery maine state line in green'. Replace the letter 'e' with 'r' in the sentence.
[EX A]: strrrt sign titlrd kittrry mainr statr linr in grrrn

[EX Q]: Sentence: 'small brown dog wearing a blue vest leaning on top of the table'. Replace the letter 'a' with 'g' in the sentence.
[EX A]:
smgll brown dog wegring g blue vest legning on top of the tgble