Alan is huge. Alan is strong. Bob is little. Bob is tiny. Harry is clever. Erin is dull. Erin is rough. If someone is not high then they are dull. If someone is not bad then they are nice. If someone is clever then they are wealthy. If someone is wealthy and not poor then they are quiet. If someone is dull and not high then they are sad. All sad people are short. If someone is little and tiny then they are poor. If someone is poor and not wealthy then they are rough. If someone is rough then they are young. If someone is nice then they are kind. All kind people are smart. All quiet people are old. 
Harry is old.