(S (S (NP (NP (BASENP (DT An) (JJ American-owned) (NN tugboat)) (PP (IN from) (BASENP (NNP Italy)))) (PP (IN along) (PP (IN with) (BASENP (PRPD its) (ADJP (NN 16) (NN member)) (NN crew))))) (VP (VBD was) (VP (VP (VBN hijacked) (NP (NP (BASENP (RB around) (NN 11) (NN am)) (BASENP (NN EST))) (PP (IN on) (BASENP (NNP Saturday))))) (PP (IN in) (NP (BASENP (DT the) (NNP Gulf)) (PP (IN of) (BASENP (NNP Aden)))))))) (PERIOD .))