(S (S (PP (IN In) (BASENP (NNP November) (NN 2010))) (COMMA ,) (S (BASENP (NNP Iran)) (VP (VBD announced) (SBAR (S (BASENP (NN uranium) (NN enrichment) (NNS activities)) (VP (VBD had) (VP (VBN been) (VP (VBN disrupted) (PP (IN by) (BASENP (DT the) (NNP Stuxnet) (NN computer) (NN virus))))))))))) (PERIOD .))