(S (S (BASENP (DT The) (NN advisory)) (VP (VBD said) (SBAR (IN that) (S (NP (BASENP (JJ past) (NNS attacks)) (PP (IN in) (BASENP (DT the) (NNP Strait)))) (VP (VBD had) (VP (VBN been) (VP (VP (VBN carried) (PRT (RP out))) (PP (IN by) (NP (NP (BASENP (JJ small) (NNS vessels)) (PP (IN such) (PP (IN as) (NP (BASENP (NNS motorboats)) (CC or) (BASENP (NN fishing) (NNS boats)))))) (PP (IN with) (BASENP (JJ armed) (NNS crews)))))))))))) (PERIOD .))