Anne is not quiet. Anne is not white. Dave is furry. Dave is round. Dave is not smart. Dave is white. Gary is blue. Gary is rough. Gary is smart. Gary is not white. Harry is blue. Harry is furry. Harry is round. Harry is smart. Harry is white. If Harry is not smart then Harry is white. Quiet, white people are furry. If someone is smart and white then they are blue. All rough people are round. All white, quiet people are round. If someone is blue and not round then they are not rough.
Dave is round.