lacks aspirations of social upheaval 
(ROOT (S (VP (VBZ lacks) (NP (NP (NNS aspirations)) (PP (IN of) (NP (JJ social) (NN upheaval)))))))
(ROOT (S (VP (VBZ ) (NP (NP (NNS )) (PP (IN ) (NP (JJ ) (NN )))))))