メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.296559759504 43.0863094239819, 141.298456865261 43.0864387947784, 141.299037320559 43.0864801203833, 141.298410790655 43.0868800069321, 141.298270468963 43.0869691419305, 141.298185869024 43.0870228731434, 141.29706618695 43.0877340762808, 141.296699576303 43.0879669051218, 141.296405083827 43.0881465335889, 141.296280692804 43.0880371902302, 141.295942832792 43.0877464487521, 141.295959478247 43.0876013583529, 141.296049301161 43.0869206197494, 141.296053561621 43.0868810603993, 141.29614399713 43.0862782507506, 141.296559759504 43.0863094239819)) ^^http://www.opengis.net/ont/geosparql#wktLiteral