of the expressive power of the camera 
(ROOT (PP (IN of) (NP (NP (DT the) (JJ expressive) (NN power)) (PP (IN of) (NP (DT the) (NN camera))))))
(ROOT (PP (IN ) (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (DT ) (NN ))))))