(S (S (PP (IN In) (BASENP (NN addition))) (COMMA ,) (S (NP (DT the) (NP (BASENP (NN S1600) (CC and) (NN S3200)) (NNS standards))) (VP (MD will) (VP (VB continue) (S (VP (VP (VBG supporting) (NP (DT the) (NP (BASENP (NN S400) (CC and) (NN S800)) (BASENP (JJ previous) (NNS standards))))) (PP (IN through) (BASENP (JJ backward) (NN compatibility))))))))) (PERIOD .))