committed to growth in his ninth decade 
(ROOT (VP (VBD committed) (PP (IN to) (NP (NN growth))) (PP (IN in) (NP (PRP$ his) (JJ ninth) (NN decade)))))
(ROOT (VP (VBD ) (PP (IN ) (NP (NN ))) (PP (IN ) (NP (PRP$ ) (JJ ) (NN )))))