Alan is strong. Alan is high. Harry is thin. Harry is tiny. Charlie is quiet. Fiona is sad. Fiona is rough. If someone is not big then they are sad. If someone is not poor then they are smart. If someone is quiet then they are clever. If someone is clever and not bad then they are nice. If someone is sad and not big then they are dull. All dull people are short. If someone is thin and tiny then they are bad. If someone is bad and not clever then they are rough. If someone is rough then they are young. If someone is smart then they are kind. All kind people are wealthy. All nice people are old. 
Alan is not short.