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