Bob is huge. Bob is strong. Gary is small. Gary is short. Harry is clever. Alan is rough. Alan is dull. If someone is not big then they are rough. If someone is not poor then they are nice. If someone is clever then they are smart. If someone is smart and not sad then they are wealthy. If someone is rough and not big then they are bad. If someone is bad then they are tiny. All tiny people are thin. If someone is small and short then they are sad. If someone is sad and not smart then they are dull. If someone is dull then they are young. If someone is young then they are energetic. If someone is nice then they are kind. If someone is kind then they are quiet. All quiet people are smart. If someone is wealthy then they are old. All old people are experienced.
Alan is not smart.