implies in its wake the intractable , irreversible flow of history 
(ROOT (S (VP (VBZ implies) (PP (IN in) (NP (PRP$ its) (NN wake))) (NP (NP (DT the) (JJ intractable) (, ,) (JJ irreversible) (NN flow)) (PP (IN of) (NP (NN history)))))))
(ROOT (S (VP (VBZ ) (PP (IN ) (NP (PRP$ ) (NN ))) (NP (NP (DT ) (JJ ) (, ) (JJ ) (NN )) (PP (IN ) (NP (NN )))))))