(S (S (ADVP (RB However)) (COMMA ,) (S (BASENP (PRP it)) (VP (VP (VBD apologized) (PP (IN on) (BASENP (NNP July) (NN 23)))) (CC and) (VP (PP (IN on) (BASENP (NNP September) (NN 7))) (VP (VP (VBD offered) (BASENP (JJ affected) (NNS customers))) (NP (CC either) (NP (BASENP (NN US$) (NN 30)) (CC or) (NP (BASENP (DT a) (NN copy)) (PP (IN of) (BASENP (DT the) (VBN deleted) (NN book))))))))))) (PERIOD .))