Fiona is huge. Fiona is big. Alan is short. Alan is tiny. Erin is kind. Harry is sad. Harry is bad. If someone is not high then they are sad. If someone is not poor then they are wealthy. If someone is kind then they are smart. If someone is smart and not dull then they are clever. If someone is sad and not high then they are rough. All rough people are small. If someone is short and tiny then they are dull. If someone is dull and not smart 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 clever people are experienced. 
Alan is not young.