(S (S (BASENP (NNP Zorn)) (VP (VBD discussed) (NP (NP (BASENP (DT a) (NN variety)) (PP (IN of) (BASENP (NNS issues)))) (COMMA ,) (PP (VBG including) (NP (BASENP (NNS frustration)) (PP (IN with) (NP (BASENP (DT the) (NN classification) (NN system)) (SBAR (WHNP (WDT that)) (S (VP (VBZ has) (VP (VP (VBN disadvantaged) (BASENP (DT some) (NNP United) (NNPS States) (NNS swimmers))) (PP (IN because) (PP (IN of) (SBAR (WHNP (WP what)) (S (BASENP (PRP she)) (VP (VBZ sees) (PP (IN as) (BASENP (PRPD its) (JJ subjective) (NN nature))))))))))))))))))) (PERIOD .))