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

[Q]: Sentence: 'a person on a surfboard riding in ocean waves'. Replace the letter 's' with 'g' in the sentence.
[A]: a pergon on a gurfboard riding in ocean waveg

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

[Q]: Sentence: 'a parked pick up truck with a flame design on the hood'. Replace the letter 'k' with 'y' in the sentence.
[A]:
a paryed picy up trucy with a flame design on the hood