(S (S (BASENP (DT This)) (VP (VBZ means) (SBAR (IN that) (S (S (NP (DT any) (NP (NP (BASENP (NN person)) (COMMA ,) (BASENP (NN group))) (CONJP (COMMA ,) (CC or)) (BASENP (NN company)))) (VP (MD can) (VP (VB publish) (BASENP (DT an) (JJ alternative) (NN version))))) (COLON -) (SBAR (WHNP (WDT which)) (S (VP (VBZ makes) (NP (BASENP (NNS problems)) (PP (IN such) (PP (IN as) (NP (BASENP (NN vendor) (NN lock-in)) (ADJP (JJ impossible))))))))))))) (PERIOD .))