about either the nature of women or 
(ROOT (PP (IN about) (NP (CC either) (NP (NP (DT the) (NN nature)) (PP (IN of) (NP (NNS women)))) (CC or))))
(ROOT (PP (IN ) (NP (CC ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NNS )))) (CC ))))