TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a cook sanding between two women inside of a kitchen'. Replace the letter 'n' with 'y' in the sentence.

SOLUTION: a cook saydiyg betweey two womey iyside of a kitchey

PROBLEM: Sentence: 'a yellow fire hydrant sitting on the sidewalk'. Replace the letter 'o' with 'd' in the sentence.

SOLUTION: a yelldw fire hydrant sitting dn the sidewalk

PROBLEM: Sentence: 'a very nice looking music device sitting on a table'. Replace the letter 'y' with 'm' in the sentence.

SOLUTION:
a verm nice looking music device sitting on a table