Dave is blue. Dave is not green. Dave is round. Erin is blue. Erin is not green. Erin is quiet. Erin is rough. Erin is round. Gary is round. Gary is young. Harry is young. If Harry is blue and Harry is young then Harry is quiet. If someone is blue and not young then they are nice. All quiet, blue people are nice. All rough, young people are nice. Young people are green. All nice people are rough. If Harry is green then Harry is blue.
Harry is not nice.