(S (S (S (BASENP (DT The) (VBN proposed) (NN solution)) (VP (MD would) (VP (VP (VP (VB put) (NP (BASENP (NNP Princess) (NNP Aiko)) (COMMA ,) (NP (BASENP (DT the) (JJ sole) (NN child)) (PP (IN of) (NP (BASENP (NNP Crown) (NNP Prince) (NNP Naruhito)) (CC and) (BASENP (NNP Crown) (NNP Princess) (NNP Masako))))))) (PP (IN in) (BASENP (NN place)))) (PP (IN as) (NP (BASENP (DT the) (ADJP (RBS most) (JJ likely))) (S (VP (TO to) (VP (VB inherit) (NP (BASENP (DT the) (NN position)) (PP (IN of) (BASENP (NN monarch)))))))))))) (COMMA ,) (SINV (VP (VP (VBG following) (ADVP (RB behind))) (VP (MD would) (VP (VB be)))) (NP (BASENP (NNP Princess) (NNP Sayako)) (SBAR (WHNP (WP who)) (S (VP (MD will) (VP (VP (VB leave) (BASENP (DT the) (NNP Imperial) (NNP Household))) (PP (JJ due) (PP (TO to) (NP (BASENP (PRPD her) (JJ planned) (NN marriage)) (PP (IN with) (BASENP (DT a) (NN commoner))))))))))))) (PERIOD .))