_:b19709 . _:b20858 _:b20859 . _:b19712 . _:b19709 . _:b20856 _:b19709 . _:b19711 . _:b19712 . _:b20857 _:b19710 . _:b19711 . _:b20856 _:b20857 . _:b19709 . _:b20857 _:b20858 . _:b20858 _:b19711 . _:b19710 . _:b20859 . _:b19710 "1"^^ . _:b19711 . _:b19712 "1"^^ . _:b20859 _:b19712 . _:b19710 .