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