(S (S (BASENP (DT The) (JJ Mexican) (NN government)) (VP (VBZ has) (VP (VBN said) (SBAR (IN that) (S (NP (BASENP (DT an) (NNP Aeroméxico) (NNP Boeing-737)) (PRN (COMMA ,) (NP (BASENP (NN flight) (NN 576)) (PP (IN from) (BASENP (NNP Cancun)))) (COMMA ,))) (VP (VP (VBD was) (VP (VBN hijacked))) (CC and) (VP (VP (VBD landed) (ADVP (RB safely))) (PP (IN at) (NP (BASENP (NNP Mexico) (NNP City) (NNP International) (NNP Airport)) (PP (IN in) (BASENP (NNP Mexico) (NNP City)))))))))))) (PERIOD .))