(S (S (NP (NP (BASENP (NNP Johnson) (POS 's)) (NN association)) (PP (IN with) (BASENP (DT the) (NNP Libertarian) (NNP Party)))) (VP (VBZ stretches) (ADVP (RB back) (PP (TO to) (NP (BASENP (NN 1993)) (COMMA ,) (SBAR (WHADVP (WRB when)) (S (BASENP (PRP he)) (VP (VBD was) (NP (BASENP (DT a) (NN dues-paying-member)) (PP (IN for) (BASENP (QP (RB about) (DT a)) (NN year)))))))))))) (PERIOD .))