Alan is high. Alan is strong. Fiona is short. Fiona is thin. Bob is quiet. Dave is poor. Dave is dull. If someone is not huge then they are poor. If someone is not sad then they are kind. If someone is quiet then they are wealthy. If someone is wealthy and not rough then they are smart. If someone is poor and not huge then they are bad. If someone is short and thin then they are rough. If someone is rough and not wealthy then they are dull. All kind people are nice. 
Bob is smart.