(S (S (PP (IN Absent) (NP (BASENP (DT an) (NN announcement)) (PP (IN from) (BASENP (DT the) (JJ Chinese) (NN government))))) (COMMA ,) (S (BASENP (PRP it)) (VP (VP (VBZ 's) (ADJP (JJ unclear))) (SBAR (WHNP (WDT what) (BASENP (DT the) (NNS conditions))) (S (VP (VBD were) (NP (BASENP (DT that)) (SBAR (S (VP (VBN caused) (S (BASENP (DT the) (NN site)) (VP (TO to) (VP (VB be) (ADJP (JJ accessible) (PP (IN from) (PP (IN within) (BASENP (NNP China)))))))))))))))))) (PERIOD .))