(S (S (BASENP (NNP Russia)) (VP (VP (VBD responded) (PP (TO to) (BASENP (DT these) (NNS actions)))) (PP (IN by) (S (VP (VP (VP (VBG sending) (BASENP (PRPD their) (JJ own) (NNS troops))) (PP (IN into) (BASENP (NNP South) (NNP Ossetia)))) (PP (IN on) (BASENP (NNP August) (NN 8)))))))) (PERIOD .))