(S (S (BASENP (DT The) (NNP NFL)) (VP (VBZ has) (VP (VBN released) (NP (BASENP (DT a) (NN statement)) (VP (VBG saying) (SBAR (IN that) (S (BASENP (DT the) (NNS stadiums)) (VP (VBP are) (VP (ADVP (RB well)) (VP (VBN protected) (PP (IN through) (NP (BASENP (NN security) (NNS measures)) (PP (ADVP (RB already)) (PP (IN in) (BASENP (NN place)))))))))))))))) (PERIOD .))