(S (S (NP (EX There)) (VP (VBP are) (VP (VBN estimated) (S (VP (TO to) (VP (VP (VP (VB be) (NP (BASENP (NNS tens)) (PP (IN of) (NP (BASENP (NNS thousands)) (PP (IN of) (NP (BASENP (NNS children)) (PP (IN in) (BASENP (JJ similar) (NNS situations))))))))) (PP (IN in) (BASENP (NNP Japan)))) (CC and) (VP (BASENP (DT a) (JJ considerable) (NN number)) (ADVP (RB overseas))))))))) (PERIOD .))