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