(S (S (NP (BASENP (NNP Margaret) (NNP Watts)) (PRN (COMMA ,) (NP (BASENP (NN president)) (PP (IN of) (NP (NP (DT the) (NP (BASENP (NNP Science) (NNPS Teachers) (POS ')) (NNP Association))) (PP (IN of) (BASENP (NNP New) (NNP South) (NNP Wales)))))) (COMMA ,))) (VP (VBD said) (SBAR (S (BASENP (DT the) (JJ educational) (NN bias) (NN claim)) (VP (VBZ is) (ADJP (JJ mistaken))))))) (PERIOD .))