TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a person snow skiing down a hill while the hold their ski poles'. Replace the letter 'r' with 'g' in the sentence.

SOLUTION: a pegson snow skiing down a hill while the hold theig ski poles

PROBLEM: Sentence: 'closeup of two teddy bears in red scarves and a brown teddy bear'. Replace the letter 'i' with 'y' in the sentence.

SOLUTION: closeup of two teddy bears yn red scarves and a brown teddy bear

PROBLEM: Sentence: 'a dog staring out of an open window'. Replace the letter 'n' with 'l' in the sentence.

SOLUTION:
a dog starilg out of al opel wildow