Bob is white. Bob is not young. Dave is rough. Gary is kind. Gary is nice. Gary is not rough. Gary is round. Gary is white. Gary is young. Harry is rough. If someone is quiet then they are round. If someone is nice and round then they are white. If someone is rough then they are nice. If someone is white then they are kind. All nice people are quiet. If Dave is white and Dave is young then Dave is rough. If Dave is round and Dave is not kind then Dave is not white. If someone is not white then they are round.
Harry is young.