メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.346114266775 43.0905959820108, 141.346032142445 43.0909078726904, 141.346022447089 43.0909603320882, 141.345941386671 43.0912976898545, 141.345837245053 43.0916775554809, 141.345756856146 43.0919690645672, 141.345260794921 43.0918995230796, 141.344947902621 43.0918575908373, 141.344836218215 43.0918435553349, 141.344197144075 43.091756489235, 141.344273561811 43.0914288712224, 141.344363698643 43.0910883502539, 141.344463581857 43.0906919252374, 141.344547657545 43.0903849040959, 141.345120082038 43.090468064046, 141.346114266775 43.0905959820108)) ^^http://www.opengis.net/ont/geosparql#wktLiteral