メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.272491720945 43.1321277234889, 141.272913186983 43.1324333188719, 141.273334568655 43.1327564952091, 141.273011093382 43.1330440508575, 141.272930863322 43.1331014579038, 141.2728540614 43.1331425768968, 141.272777428107 43.1331791259849, 141.272622839857 43.1332207051953, 141.272521206537 43.1332291904559, 141.27241662941 43.1332236548266, 141.272328228746 43.1331972986502, 141.27223534078 43.1331512127569, 141.272059216138 43.1330680543389, 141.271594223366 43.1328484462502, 141.271554576197 43.1328297516251, 141.271421435592 43.1327668629685, 141.271018994386 43.1325804960556, 141.271131415441 43.1324858795659, 141.27208370976 43.1318095812405, 141.272491720945 43.1321277234889)) ^^http://www.opengis.net/ont/geosparql#wktLiteral