Anne is furry. Dave is blue. Dave is quiet. Dave is red. Dave is round. Gary is big. Gary is not blue. Gary is not furry. Gary is red. Gary is not round. Gary is smart. Harry is big. Harry is blue. Harry is furry. Harry is red. If someone is quiet and not red then they are not blue. If Gary is big then Gary is smart. If someone is red and not smart then they are quiet.
Harry is quiet.