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