メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.427445266181 43.0052309062802, 144.428179109003 43.0060664292391, 144.428881028257 43.0068658438936, 144.429968767357 43.0081905649531, 144.430136200907 43.0084051093848, 144.431443230476 43.0100808613739, 144.428768922592 43.010045027784, 144.424810496123 43.0073122120228, 144.423882947845 43.0066563068478, 144.421529271252 43.0049916748569, 144.423546565023 43.004510665999, 144.424689543288 43.0042241692468, 144.424924645168 43.0041850998947, 144.426152870242 43.0038871926466, 144.427445266181 43.0052309062802)) ^^http://www.opengis.net/ont/geosparql#wktLiteral