(S (S (BASENP (NNP Thursday)) (VP (VBD saw) (S (NP (NP (JJ national) (NP (BASENP (NNS children) (POS 's)) (NN ombudsman))) (BASENP (NNP Pavel) (NNP Astakhov))) (VP (VB say) (SBAR (S (BASENP (NN 4,000) (NNS youths)) (VP (VP (VBP kill) (BASENP (PRP themselves))) (BASENP (DT each) (NN year))))))))) (PERIOD .))