メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.998837813716 35.0030250271719, 136.999116303923 35.0030037236329, 136.999351771957 35.0029829239345, 136.999848288692 35.002978683353, 136.999941455821 35.0035580710812, 137.000015298918 35.0039884824251, 137.000096639221 35.0044473561777, 137.000096776676 35.0044482019425, 137.000173436052 35.0049099565746, 136.998842362392 35.0048895827247, 136.997392019471 35.004891211416, 136.997415305988 35.0030882492613, 136.998010665352 35.0030884515707, 136.998211405273 35.0030775349434, 136.998837813716 35.0030250271719)) ^^http://www.opengis.net/ont/geosparql#wktLiteral