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

Sentence: 'a cook sanding between two women inside of a kitchen'. Replace the letter 'n' with 'y' in the sentence.
a cook saydiyg betweey two womey iyside of a kitchey

Sentence: 'a person and a dog are on a bench'. Replace the letter 'e' with 'r' in the sentence.
a prrson and a dog arr on a brnch

Sentence: 'a couple walking down a sidewalk next to some graffiti'. Replace the letter 'a' with 'y' in the sentence.

y couple wylking down y sidewylk next to some gryffiti