Dave is green. Dave is nice. Dave is white. Dave is young. Erin is green. Erin is smart. Erin is not white. Erin is young. Gary is green. Gary is white. Harry is kind. Harry is nice. Harry is not quiet. Harry is smart. Harry is white. Harry is not young. If something is smart and not young then it is green. If Dave is quiet and Dave is not green then Dave is not kind. If something is kind and not green then it is not white.
Dave is white.