(S (S (NP (BASENP (NNP Plan) (NNP B)) (PRN (COMMA ,) (ADJP (ADJP (JJ available) (PP (IN in) (BASENP (DT the) (NNP United) (NNPS States)))) (PP (IN since) (BASENP (NN 1999)))) (COMMA ,))) (VP (VP (VBZ consists) (PP (IN of) (NP (BASENP (NN two) (NNS pills)) (VP (VBN designed) (S (VP (TO to) (VP (VB prevent) (BASENP (NN conception))))))))) (CC and) (VP (MD must) (VP (VB be) (VP (VBN taken) (PP (IN within) (NP (BASENP (NN 72) (NNS hours)) (PP (IN of) (BASENP (JJ sexual) (NN intercourse)))))))))) (PERIOD .))