(S (S (BASENP (NNPS Democrats)) (VP (VBD expressed) (NP (BASENP (NN frustration)) (PP (IN with) (NP (NP (BASENP (DT the) (NNP Bush) (NN administration) (POS 's)) (NN secrecy)) (PP (IN on) (NP (BASENP (DT the) (NN issue)) (PP (IN of) (BASENP (NN interrogation) (NNS tactics)))))))))) (PERIOD .))