Dave is high. Dave is big. Harry is thin. Harry is tiny. Charlie is nice. Fiona is rough. Fiona is dull. If someone is not strong then they are rough. If someone is not sad then they are kind. If someone is nice then they are smart. If someone is smart and not poor then they are clever. If someone is rough and not strong then they are bad. All bad people are small. If someone is thin and tiny then they are poor. If someone is poor and not smart then they are dull. If someone is dull then they are young. If someone is kind then they are wealthy. All wealthy people are quiet. All clever people are experienced. 
Dave is not small.