Anne is not blue. Anne is nice. Anne is not quiet. Anne is round. Dave is nice. Dave is quiet. Dave is not white. Gary is not green. Gary is nice. Gary is rough. Gary is round. Gary is not white. Quiet, white people are rough. All green, quiet people are nice. If someone is white then they are round. All green people are nice. All nice, blue people are not quiet. All rough people are nice.
Dave is white.