(S (S (BASENP (DT This)) (VP (VBZ is) (NP (BASENP (DT the) (JJ first)) (PP (IN of) (NP (BASENP (DT a) (ADJP (NN two) (NN part)) (NN series)) (VP (VBG examining) (BASENP (DT the) (NN BDSM) (NN business)))))))) (PERIOD .))