(S (S (NP (BASENP (DT The) (NN letter)) (PRN (COMMA ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (VP (VBN assumed) (S (VP (TO to) (VP (VB be) (BASENP (DT a) (NN hoax))))))))) (COMMA ,))) (VP (MD could) (VP (VB have) (NP (BASENP (DT a) (JJ major) (NN impact)) (PP (IN on) (NP (BASENP (NNP New) (NNP Zealand) (POS 's)) (BASENP (NN meat) (NN industry)))))))) (PERIOD .))