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