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