Dave is huge. Dave is high. Harry is tiny. Harry is short. Bob is kind. Alan is poor. Alan is dull. If someone is not big then they are poor. If someone is not rough then they are nice. If someone is kind then they are clever. If someone is clever and not sad then they are wealthy. If someone is poor and not big then they are bad. If someone is bad then they are little. All little people are small. If someone is tiny and short then they are sad. If someone is sad and not clever then they are dull. If someone is dull then they are energetic. If someone is energetic then they are young. If someone is nice then they are quiet. If someone is quiet then they are smart. All smart people are clever. If someone is wealthy then they are experienced. All experienced people are old.
Alan is not clever.