Bob is rough. Dave is quiet. Dave is rough. Erin is rough. Gary is not cold. Gary is rough. Gary is white. If someone is quiet and not kind then they are white. If someone is cold and young then they are not white. If Erin is kind and Erin is not cold then Erin is quiet. All young people are green. White, kind people are not cold. If someone is quiet and not cold then they are white.
Erin is young.