(S (S (S (VP (TO To) (VP (VB reduce) (BASENP (JJ possible) (NNS risks))))) (COMMA ,) (S (BASENP (DT the) (NNP Navy)) (VP (VP (VBD urged) (BASENP (NNS ships))) (S (VP (TO to) (VP (VP (VB strengthen) (BASENP (JJ onboard) (NN security))) (COMMA ,) (PP (VBG including) (S (VP (VBG adding) (NP (BASENP (JJ additional) (NNS lights)) (CC and) (BASENP (NNS lookouts)))))))))))) (PERIOD .))