メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.323511495275 44.3728313021401, 143.322246264727 44.372088202571, 143.318723075214 44.3699982256128, 143.316897610551 44.3689341582429, 143.318959962677 44.3671248334396, 143.321184909839 44.3684499228774, 143.320677427939 44.368895653385, 143.325108637868 44.3715681459885, 143.324960462295 44.3716724085194, 143.323511495275 44.3728313021401)) ^^http://www.opengis.net/ont/geosparql#wktLiteral