Dave is big. Dave is strong. Erin is short. Erin is thin. Bob is quiet. Fiona is sad. Fiona is dull. If someone is not high then they are sad. If someone is not poor then they are smart. If someone is quiet then they are wealthy. If someone is wealthy and not rough then they are clever. If someone is sad and not high then they are bad. All bad people are little. If someone is short and thin then they are rough. If someone is rough and not wealthy then they are dull. If someone is dull then they are young. If someone is smart then they are kind. All kind people are nice. All clever people are old. 
Bob is old.