(S (S (BASENP (PRP She)) (VP (VP (VBD was) (VP (VP (VBN greeted) (PP (IN at) (BASENP (DT the) (JJ international) (NN airport)))) (PP (IN by) (BASENP (NN police))))) (CONJP (COMMA ,) (CC and)) (VP (VP (VBZ is) (PP (IN under) (BASENP (NN police) (NN protection)))) (PP (JJ due) (PP (TO to) (NP (BASENP (NNS concerns)) (PP (IN for) (BASENP (PRPD her) (NN safety))))))))) (PERIOD .))