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