it 's trying to set the women 's liberation movement back 20 years 
(ROOT (S (NP (PRP it)) (VP (VBZ 's) (VP (VBG trying) (S (VP (TO to) (VP (VB set) (NP (NP (DT the) (NNS women) (POS 's)) (NN liberation) (NN movement)) (ADVP (RB back)) (NP (CD 20) (NNS years)))))))))
(ROOT (S (NP (PRP )) (VP (VBZ ) (VP (VBG ) (S (VP (TO ) (VP (VB ) (NP (NP (DT ) (NNS ) (POS )) (NN ) (NN )) (ADVP (RB )) (NP (CD ) (NNS )))))))))