Gary is huge. Gary is strong. Dave is tiny. Dave is small. Fiona is wealthy. Charlie is rough. Charlie is sad. If someone is not high then they are rough. If someone is not poor then they are quiet. If someone is wealthy then they are clever. If someone is clever and not dull then they are smart. If someone is rough and not high then they are bad. All bad people are short. If someone is tiny and small then they are dull. If someone is dull and not clever then they are sad. If someone is sad then they are young. If someone is quiet then they are nice. All nice people are kind. All smart people are old. 
Dave is young.