Harry is strong. Harry is big. Alan is little. Alan is short. Dave is smart. Anne is sad. Anne is bad. If someone is not huge then they are sad. If someone is not poor then they are wealthy. If someone is smart then they are clever. If someone is clever and not rough then they are kind. If someone is sad and not huge then they are dull. All dull people are tiny. If someone is little and short then they are rough. If someone is rough and not clever then they are bad. If someone is bad then they are young. If someone is wealthy then they are quiet. All quiet people are nice. All kind people are old. 
Dave is old.