Charlie is smart. Charlie is white. Dave is furry. Dave is smart. Gary is big. Gary is smart. Gary is not white. Gary is young. Harry is not big. Harry is furry. Harry is quiet. Harry is not round. Harry is smart. Harry is white. Harry is young. If something is not furry then it is young. Furry things are white. If something is big and quiet then it is not young. If Dave is young and Dave is big then Dave is quiet. Furry, white things are smart. Young things are smart. If something is quiet and not young then it is big. If something is not white then it is round.
Gary is not white.