(S (S (S (NP (BASENP (DT The) (NN head)) (PP (IN of) (NP (BASENP (DT the) (NN earthquake) (NN monitoring) (NN agency)) (PP (IN in) (BASENP (DT the) (NNPS Philippines)))))) (VP (VBD disputed) (NP (BASENP (DT the) (JJ Japanese) (NN agency) (POS 's)) (NNS warnings)))) (COMMA ,) (ADVP (RB however))) (PERIOD .))