is a negligible work of manipulation , an exploitation piece doing its usual worst to guilt-trip parents 
(ROOT (VP (VBZ is) (NP (NP (NP (DT a) (JJ negligible) (NN work)) (PP (IN of) (NP (NN manipulation)))) (, ,) (NP (NP (DT an) (NN exploitation) (NN piece)) (VP (VBG doing) (NP (PRP$ its) (JJ usual) (JJS worst)) (S (VP (IN to) (VP (NN guilt) (HYPH -) (NN trip) (NP (NNS parents))))))))))
(ROOT (VP (VBZ ) (NP (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (NN )))) (, ) (NP (NP (DT ) (NN ) (NN )) (VP (VBG ) (NP (PRP$ ) (JJ ) (JJS )) (S (VP (IN ) (VP (NN ) (HYPH ) (NN ) (NP (NNS ))))))))))