(S (S (PP (IN At) (NP (BASENP (DT the) (NN beginning)) (PP (IN of) (BASENP (DT the) (NN tennis) (NN season))))) (COMMA ,) (S (BASENP (NNP Serena)) (VP (VBD stated) (NP (BASENP (PRPD her) (JJ own) (NN determination)) (S (VP (TO to) (VP (VB reclaim) (BASENP (DT the) (NN No.) (NN 1) (NN ranking))))))))) (PERIOD .))