(S (S (S (BASENP (NNP Mattel)) (VP (VBZ is) (VP (VBN considered) (PP (IN as) (NP (BASENP (NN one)) (PP (IN of) (NP (BASENP (DT the) (ADJP (RBS most) (JJ stringent)) (NNS producers)) (PP (IN in) (BASENP (DT the) (NN market)))))))))) (S (ADVP (RB however)) (S (BASENP (PRPD their) (NN reputation)) (VP (VBZ is) (PP (IN in) (BASENP (NN danger))))))) (PERIOD .))