(S (S (NP (BASENP (DT The) (JJ central) (NN theme)) (PP (IN of) (BASENP (DT the) (NN two) (NNS books)))) (VP (VBZ is) (SBAR (IN that) (S (NP (BASENP (DT the) (NN bloodline)) (PP (IN from) (NP (BASENP (DT a) (NN marriage)) (PP (IN between) (NP (BASENP (NNP Jesus)) (CC and) (BASENP (NNP Mary) (NNP Magdalene))))))) (VP (VBZ survives) (BASENP (NN today))))))) (PERIOD .))