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