_:vb2053879 . _:vb2053879 "51.171813 5.93297852.024127 7.361547"^^ . _:vb2053879 "POLYGON((5.932978 52.024127,7.361547 52.024127,7.361547 51.171813,5.932978 51.171813,5.932978 52.024127))"^^ .