メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.560677635124 39.596035798653, 140.560534670715 39.5960404961123, 140.559592709197 39.5960092989811, 140.559615416171 39.5954690095329, 140.559548620565 39.5948300271001, 140.560925905044 39.5948533408698, 140.56081488804 39.5949987494098, 140.560762413263 39.5951242394639, 140.56071032875 39.5955674170784, 140.560677635124 39.596035798653)) ^^http://www.opengis.net/ont/geosparql#wktLiteral