メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.902437611007 35.3961804714714, 136.902351635772 35.3966082390412, 136.902257378298 35.3970825377783, 136.902123715935 35.3979050568402, 136.901480714351 35.3978343522675, 136.90128493601 35.3978025843306, 136.900435707749 35.3977067731491, 136.89920642828 35.3975740601835, 136.899700691066 35.393533377256, 136.90058574664 35.3935995548666, 136.901583549732 35.3936670298927, 136.902894532975 35.3937813086267, 136.902437611007 35.3961804714714)) ^^http://www.opengis.net/ont/geosparql#wktLiteral