_:B2c9607803f2a7e5146c2915bd187e5bf . "Keizo" . "Nagatani" . "Keizo Nagatani" . . . . "Nagatani, Keizo" . . _:B2c9607803f2a7e5146c2915bd187e5bf . _:B2c9607803f2a7e5146c2915bd187e5bf . _:B2c9607803f2a7e5146c2915bd187e5bf "2023-05-20"^^ . _:B2c9607803f2a7e5146c2915bd187e5bf . _:B2c9607803f2a7e5146c2915bd187e5bf . _:B2c9607803f2a7e5146c2915bd187e5bf "069448027" . _:B2c9607803f2a7e5146c2915bd187e5bf . _:B2c9607803f2a7e5146c2915bd187e5bf . _:B2c9607803f2a7e5146c2915bd187e5bf .