(S (S (BASENP (DT The) (NN microblogging) (NN service) (NNP Twitter)) (VP (VBZ has) (VP (VBN changed) (NP (BASENP (PRPD its) (NN software) (NN support)) (PP (IN for) (S (VP (VBG censoring) (BASENP (NNS posts))))))))) (PERIOD .))