(S (S (BASENP (PRP He)) (VP (ADVP (RB also)) (VP (VBD claimed) (SBAR (S (BASENP (DT this) (NN attack)) (VP (VBZ is) (NP (BASENP (DT an) (NN indicator)) (PP (IN of) (NP (NP (BASENP (DT the) (NN susceptibility)) (PP (IN of) (BASENP (JJ Chinese) (NN Internet) (NN infrastructure)))) (PP (TO to) (BASENP (DT these) (NNS attacks)))))))))))) (PERIOD .))