Dave is big. Dave is high. Erin is small. Erin is little. Charlie is smart. Alan is dull. Alan is rough. If someone is not huge then they are dull. If someone is not poor then they are quiet. If someone is smart then they are kind. If someone is kind and not bad then they are wealthy. If someone is dull and not huge then they are sad. All sad people are short. If someone is small and little then they are bad. If someone is bad and not kind then they are rough. If someone is rough then they are young. If someone is quiet then they are nice. All nice people are clever. All wealthy people are old. 
Alan is clever.