メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.210430349474 42.9861072638846, 143.207572226871 42.9858663738312, 143.207411845351 42.9858528772737, 143.207197647787 42.9858347662005, 143.205733485646 42.9857113441166, 143.204815524352 42.9856225187808, 143.205387433051 42.9840504470324, 143.206007949039 42.9823530630938, 143.20601676594 42.9823285844872, 143.207517386181 42.982473434755, 143.208633556622 42.982560089028, 143.209632203899 42.9826475717528, 143.210683555653 42.9827361502696, 143.210848873245 42.9827533282658, 143.210430349474 42.9861072638846)) ^^http://www.opengis.net/ont/geosparql#wktLiteral