Charlie is big. Dave is not big. Fiona is not rough. Harry is rough. All cold things are young. All furry things are round. All round, big things are rough. If something is smart and not furry then it is young. If something is young then it is round. If something is not furry then it is smart. If something is rough and not big then it is smart. If something is not smart then it is round.
Harry is not furry.