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