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