Dave is high. Dave is big. Fiona is tiny. Fiona is short. Anne is clever. Gary is bad. Gary is dull. If someone is not huge then they are bad. If someone is not poor then they are nice. If someone is clever then they are smart. If someone is smart and not sad then they are kind. If someone is bad and not huge then they are rough. All rough people are thin. If someone is tiny and short then they are sad. If someone is sad and not smart then they are dull. If someone is dull then they are young. If someone is nice then they are quiet. All quiet people are wealthy. All kind people are experienced. 
Dave is not thin.