Alan is huge. Alan is big. Gary is thin. Gary is short. Harry is smart. Dave is dull. Dave is poor. If someone is not strong then they are dull. If someone is not sad then they are kind. If someone is smart then they are wealthy. If someone is wealthy and not bad then they are clever. If someone is dull and not strong then they are rough. All rough people are small. If someone is thin and short then they are bad. If someone is bad and not wealthy then they are poor. If someone is poor then they are young. If someone is kind then they are quiet. All quiet people are nice. All clever people are experienced. 
Alan is not small.