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