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