(S (S (PP (IN On) (BASENP (NNP Monday))) (COMMA ,) (S (BASENP (JJ Russian) (NNS troops)) (VP (VP (VBD advanced) (BASENP (QP (RB roughly) (NN 25)) (NNS miles))) (PP (IN into) (BASENP (NNP Georgia)))))) (PERIOD .))