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