(S (S (BASENP (DT The) (NNP New) (NNP Zealand) (NNP Government)) (VP (VBZ has) (VP (VBN been) (VP (VP (VBN forced) (S (VP (TO to) (VP (VB act))))) (PP (IN because) (PP (IN of) (NP (NP (BASENP (DT a) (NN letter)) (VP (VBN sent) (PP (TO to) (BASENP (NNP Prime) (NNP Minister) (NNP Helen) (NNP Clark))))) (SBAR (WHNP (WDT which)) (S (VP (VBD claimed) (SBAR (IN that) (S (BASENP (DT the) (NN disease) (NNP Foot) (CC and) (NNP Mouth)) (VP (VBZ is) (VP (VBG being) (VP (ADVP (RB intentionally)) (VP (VBN spread) (PP (IN on) (BASENP (NNP Waiheke) (NNP Island))))))))))))))))))) (PERIOD .))