Bob is strong. Bob is big. Dave is short. Dave is thin. Harry is kind. Erin is sad. Erin is bad. If someone is not huge then they are sad. If someone is not poor then they are quiet. If someone is kind then they are smart. If someone is smart and not dull then they are wealthy. If someone is sad and not huge then they are rough. If someone is short and thin then they are dull. If someone is dull and not smart then they are bad. All quiet people are nice. 
Erin is not nice.