(S (S (PP (NP (PP (BASENP (NN 彼)) (IN の)) (NN 代理人)) (INPH により)) (S (PP-SBJ (NP (S (PP-SBJ (BASENP (NN 彼)) (IN が)) (VP (PP (BASENP (NN ７３) (NN 歳)) (IN で)) (VP (VBV 亡くなっ) (VP (MD た))))) (NN こと)) (IN が)) (VP (VP (VP (NN 発表) (VBO さ)) (VP (VBV れ))) (VP (MD た))))) (PERIOD 。))
彼 の 代理人 により 彼 が 73 歳 で 亡くなっ た こと が 発表 さ れ た 。
His death at age 73 was announced by his agent .