Dave is not cold. Dave is not furry. Dave is green. Dave is kind. Dave is round. Dave is smart. Dave is young. Gary is not furry. Gary is round. Harry is not kind. If Harry is smart and Harry is furry then Harry is kind. If Gary is not furry then Gary is young. All furry, kind people are round. If someone is furry then they are cold. If someone is green then they are smart. If someone is not kind and not round then they are not green. If Harry is not kind then Harry is young. If someone is kind and not young then they are smart.
Harry is not young.