Bob is strong. Bob is big. Erin is small. Erin is thin. Anne is nice. Dave is poor. Dave is sad. If someone is not huge then they are poor. If someone is not dull then they are wealthy. If someone is nice then they are clever. If someone is clever and not rough then they are kind. If someone is poor and not huge then they are bad. All bad people are tiny. If someone is small and thin then they are rough. If someone is rough and not clever then they are sad. If someone is sad then they are young. If someone is wealthy then they are smart. All smart people are quiet. All kind people are old. 
Erin is young.