(S (S (QT (DQL ``) (QTC (S (NP (BASENP (DT The) (NN level)) (PP (IN of) (BASENP (NN security) (NNS incidents)))) (VP (VBZ has) (VP (VP (VBN declined) (PP (IN in) (NP (BASENP (NN eight)) (PP (IN of) (BASENP (DT the) (JJ past) (NN 12) (NNS weeks)))))) (COMMA ,) (PP (IN with) (NP (NP (BASENP (DT the) (NN level)) (PP (IN of) (NP (BASENP (NNS incidents)) (PP (IN in) (BASENP (DT the) (JJ past) (NN two) (NNS weeks)))))) (NP (BASENP (DT the) (JJS lowest)) (PP (IN since) (NP (BASENP (NNP June)) (PP (IN of) (BASENP (NN 2006))))))))))) (COMMA ,)) (DQR '')) (S (BASENP (NNP Petraeus)) (VP (VBD testified)))) (PERIOD .))