TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'bags of seeds with a pair of black scissors sitting on them'. Replace the letter 'b' with 'y' in the sentence.

SOLUTION: yags of seeds with a pair of ylack scissors sitting on them

PROBLEM: Sentence: 'two zebras are snuggling at the zoo in their display area'. Replace the letter 'e' with 'z' in the sentence.

SOLUTION: two zzbras arz snuggling at thz zoo in thzir display arza

PROBLEM: Sentence: 'three young guys are having fun over the bed'. Replace the letter 'o' with 'e' in the sentence.

SOLUTION:
three yeung guys are having fun ever the bed