(S (S (NP (BASENP (DT The) (NN group)) (PP (IN of) (NP (BASENP (NNS scholars)) (VP (VBG proposing) (BASENP (DT this) (NN solution)))))) (VP (VBP have) (VP (VBN stressed) (SBAR (IN that) (S (BASENP (PRPD their) (NN solution)) (VP (VBZ is) (VP (VBN aimed) (PP (IN at) (S (VP (VBG maintaining) (NP (BASENP (DT the) (NN tradition)) (PP (IN of) (BASENP (DT a) (JJ male) (NN heir)))))))))))))) (PERIOD .))