Erin is strong. Erin is high. Alan is thin. Alan is small. Harry is smart. Fiona is bad. Fiona is dull. If someone is not huge then they are bad. If someone is not poor then they are quiet. If someone is smart then they are kind. If someone is kind and not sad then they are nice. If someone is bad and not huge then they are rough. If someone is thin and small then they are sad. If someone is sad and not kind then they are dull. All quiet people are wealthy. 
Alan is not dull.