(S (S (NP (BASENP (NNP Australian) (NNP Federal) (NNPS Police)) (PRN (LRB -LRB-) (BASENP (NNPS AFP)) (RRB -RRB-))) (VP (VBP have) (VP (VP (VP (VBN arrested) (BASENP (NN six) (NNS people))) (PP (VBG following) (NP (NP (BASENP (DT a) (NN breach)) (PP (IN of) (BASENP (NN security)))) (PP (IN at) (NP (BASENP (DT the) (JJ secretive) (NNP Pine) (NNP Gap) (NNP Joint) (NNP Defense) (NNP Facility)) (PP (IN in) (BASENP (JJ central) (NNP Australia)))))))) (PP (IN on) (BASENP (NNP Friday)))))) (PERIOD .))