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