Harry is strong. Harry is big. Dave is small. Dave is thin. Bob is smart. Gary is poor. Gary is rough. If someone is not high then they are poor. 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 poor and not high then they are bad. All bad people are short. If someone is small 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 clever. All clever people are wealthy. All quiet people are old. 
Bob is old.