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