(S (S (BASENP (DT The) (NN change)) (VP (VBZ has) (VP (VP (VBN taken) (NP (BASENP (QP (RB about) (DT a)) (NN year)) (QP (CC and) (BASENP (DT a) (NN half))))) (COMMA ,) (PP (IN since) (NP (BASENP (DT the) (JJ first) (NNS changes)) (PP (IN of) (NP (BASENP (DT some) (NNS workstations) (CC and) (NNS servers)) (PP (IN of) (BASENP (NNP Radiobrás)))))))))) (PERIOD .))