Anne is blue. Anne is quiet. Bob is smart. Dave is not blue. Dave is quiet. Dave is not rough. Dave is round. Dave is not smart. Dave is white. Erin is blue. Erin is quiet. Erin is rough. If something is smart and not round then it is rough. If something is rough then it is blue. All blue, smart things are white. All quiet things are red. Blue things are rough. If something is red and rough then it is quiet. If something is white then it is quiet. If Bob is round then Bob is not quiet.
Bob is not quiet.