メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.387192842198 43.0967540655439, 141.386704566752 43.0968412431771, 141.385926556514 43.096969130499, 141.385917419313 43.0969705386769, 141.38599197742 43.0966850141215, 141.386031940854 43.0965457886301, 141.386042083056 43.0965002938062, 141.38604595174 43.0964299265488, 141.386044255717 43.096345944412, 141.386037060135 43.0957321526563, 141.387955346503 43.0958163866198, 141.387958873973 43.0964673530942, 141.387983160595 43.0966514393684, 141.387192842198 43.0967540655439)) ^^http://www.opengis.net/ont/geosparql#wktLiteral