(S (S (ADVP (RB Meanwhile)) (COMMA ,) (S (NP (BASENP (DT the) (NNP Philippine) (NNP Coast) (NNP Guard)) (PRN (LRB -LRB-) (BASENP (NNP PCG)) (RRB -RRB-))) (VP (VBD formed) (NP (NP (NP (BASENP (DT a) (NNP Special) (NNP Board)) (PP (IN of) (BASENP (NNP Marine) (NNP Inquiry)))) (PRN (LRB -LRB-) (BASENP (NNP SBMI)) (RRB -RRB-))) (SBAR (S (VP (TO to) (VP (VB investigate) (BASENP (DT the) (NN sea) (NN tragedy)))))))))) (PERIOD .))