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