メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.76423632317 35.4346789336948, 136.763503017382 35.4342664965946, 136.764667740618 35.4329454370698, 136.764919831504 35.4330510862006, 136.764944542933 35.4329522984063, 136.76501942449 35.4329643752982, 136.765036605088 35.4329090833956, 136.765259058996 35.4329098152233, 136.765247497505 35.4332894420438, 136.76423632317 35.4346789336948)) ^^http://www.opengis.net/ont/geosparql#wktLiteral