of france 's most inventive directors 
(ROOT (PP (IN of) (NP (NP (NNP france) (POS 's)) (ADJP (RBS most) (JJ inventive)) (NNS directors))))
(ROOT (PP (IN ) (NP (NP (NNP ) (POS )) (ADJP (RBS ) (JJ )) (NNS ))))