_:b668304990 . _:b668304991 . _:b668304990 . _:b668304991 . _:b668304991 . _:b668304992 . _:b668304992 . _:b668304990 . _:b668304992 . _:b668304992 _:b668304991 . _:b668304991 . _:b668304990 _:b668304992 .