(S (S (NP (BASENP (DT The) (NN fact)) (SBAR (IN that) (S (BASENP (NNP Crown) (NNP Princess) (NNP Masako)) (VP (VP (VBD was) (RB n't)) (ADJP (JJ able) (S (VP (TO to) (VP (VB have) (NP (BASENP (DT a) (NN boy)) (SBAR (S (VP (TO to) (VP (VB succeed) (BASENP (DT the) (NN throne))))))))))))))) (VP (VBZ is) (VP (VBN thought) (S (VP (TO to) (VP (VB have) (VP (VBN provoked) (NP (PRPD her) (NP (BASENP (NN depression)) (CC and) (NP (BASENP (JJ subsequent) (NN withdrawal)) (PP (IN from) (BASENP (JJ public) (NN activity))))))))))))) (PERIOD .))