(S (S (S (PP (VBG According) (PP (TO to) (BASENP (JJ domestic) (NN media)))) (COMMA ,) (S (NP (BASENP (NNS concerns)) (PP (IN over) (NP (BASENP (NN safety)) (PP (IN at) (BASENP (DT the) (NN port)))))) (VP (VBP have) (VP (VBN been) (VP (VBN raised) (PP (IN in) (BASENP (DT the) (NN past)))))))) (COLON ;) (S (NP (BASENP (DT a) (NN government) (NN study)) (PP (IN in) (BASENP (NN 2006)))) (VP (VBD noted) (SBAR (IN that) (S (NP (BASENP (NN five) (NNS projects)) (PP (IN at) (BASENP (DT the) (NN port)))) (VP (VBD were) (PP (IN at) (NP (BASENP (NN risk)) (PP (IN of) (BASENP (NNS accidents))))))))))) (PERIOD .))