(S (S (S (NP (NP (BASENP (DT A) (NN reporter) (POS 's)) (NNS notes)) (VP (VBN subpoenaed) (PP (IN by) (NP (BASENP (DT the) (NNP U.S.) (NNP District) (NNP Court)) (PP (IN in) (BASENP (NNP Washington))))))) (VP (MD may) (VP (VP (VB show) (NP (BASENP (NNP United) (NNPS States) (NNP President) (NNP George) (NNP W.) (NNP Bush) (POS 's)) (BASENP (JJ chief) (JJ political) (NN advisor) (NNP Karl) (NNP Rove)))) (PP (IN as) (NP (NP (BASENP (NN one)) (PP (IN of) (BASENP (DT the) (NN two) (NNS sources)))) (PP (IN behind) (NP (BASENP (DT the) (NN leaking)) (PP (IN of) (NP (BASENP (DT the) (NN identity)) (PP (IN of) (BASENP (JJ undercover) (NNP CIA) (NN agent) (NNP Valerie) (NNP Plame)))))))))))) (COMMA ,) (PP (VBG according) (PP (TO to) (NP (BASENP (QP (NN one) (CC or) (JJR more)) (JJ anonymous) (NNS sources)) (VP (VBN cited) (PP (IN by) (BASENP (NNP MSNBC)))))))) (PERIOD .))