_:b20975 _:b19966 . _:b19969 . _:b19967 . _:b20976 _:b19967 . _:b19969 . _:b20978 . _:b19968 . _:b19968 . _:b19968 . _:b19966 . _:b19967 "1"^^ . _:b19969 "1"^^ . _:b20975 _:b20976 . _:b20976 _:b20977 . _:b20978 _:b19969 . _:b19967 . _:b20977 _:b20978 . _:b19966 . _:b20977 _:b19968 . _:b19966 .