_:vb2457636 . _:vb2457636 "-18.7377 39.9641-11.3675 43.4441"^^ . _:vb2457636 "POLYGON((39.9641 -11.3675,43.4441 -11.3675,43.4441 -18.7377,39.9641 -18.7377,39.9641 -11.3675))"^^ .