TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a couple of kids laying in bed together'. Replace the letter 'o' with 'v' in the sentence.

SOLUTION: a cvuple vf kids laying in bed tvgether

PROBLEM: Sentence: 'a person on a snow board flying through the air'. Replace the letter 'f' with 'n' in the sentence.

SOLUTION: a person on a snow board nlying through the air

PROBLEM: Sentence: 'a family opens gifts in a room with their dog, while sitting on couches'. Replace the letter 's' with 'l' in the sentence.

SOLUTION:
a family openl giftl in a room with their dog, while litting on couchel