Harry is strong. Harry is huge. Fiona is thin. Fiona is little. Alan is nice. Gary is rough. Gary is dull. If someone is not high then they are rough. If someone is not poor then they are clever. If someone is nice then they are wealthy. If someone is wealthy and not bad then they are smart. If someone is rough and not high then they are sad. All sad people are small. If someone is thin and little then they are bad. If someone is bad and not wealthy then they are dull. If someone is dull then they are young. If someone is clever then they are kind. All kind people are quiet. All smart people are old. 
Alan is not old.