(S (S (PP (IN For) (BASENP (DT this) (NN reason))) (COMMA ,) (S (NP (BASENP (NNP Mervyn) (NNP King)) (COMMA ,) (SBAR (WHNP (WP who)) (S (VP (VBZ is) (NP (BASENP (DT the) (NNP Governor)) (PP (IN of) (NP (BASENP (DT the) (NNP Bank)) (PP (IN of) (BASENP (NNP England)))))))))) (VP (VBZ has) (VP (VP (VBN written) (BASENP (DT a) (VBN required) (JJ explanatory) (NN letter))) (PP (TO to) (NP (NP (BASENP (NNP Chancellor)) (PP (IN of) (BASENP (DT the) (NNP Exchequer)))) (BASENP (NNP Alistair) (NNP Darling)))))))) (PERIOD .))