_:b4040871 . _:b3932725 . . . "1997" . _:b3932724 "1997"^^ . _:b4040871 "1997"^^ . _:b3932724 . _:b3932725 "1997"^^ . _:b4040872 "1997"^^ . _:b4040872 . _:b3932725 . _:b4040871 . _:b4040872 . _:b3932724 . . .