(S (S (PP (IN On) (BASENP (NNP August) (JJ 10th))) (COMMA ,) (S (BASENP (NNP Russian) (NNP Black) (NNP Sea) (NNP Fleet)) (VP (VP (VBD began) (NP (BASENP (DT a) (JJ naval) (NN blockade)) (PP (IN of) (NP (BASENP (JJ Georgian) (NN port)) (PP (IN of) (BASENP (NNP Poti))))))) (CC and) (VP (VP (VBD landed) (BASENP (JJ several) (NN thousand) (JJ Russian) (NNS troops))) (PP (IN in) (NP (BASENP (NNP Abkhazia)) (PP (IN in) (BASENP (JJ western) (NNP Georgia))))))))) (PERIOD .))