Fiona is high. Fiona is big. Bob is little. Bob is thin. Dave is wealthy. Charlie is rough. Charlie is dull. If someone is not strong then they are rough. If someone is not sad then they are nice. If someone is wealthy then they are clever. If someone is clever and not poor then they are quiet. If someone is rough and not strong then they are bad. All bad people are short. If someone is little and thin then they are poor. If someone is poor and not clever then they are dull. If someone is dull then they are young. If someone is nice then they are smart. All smart people are kind. All quiet people are old. 
Dave is not old.