メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.991233027102 34.8725145565255, 136.99093833514 34.8725869518008, 136.990637759332 34.872642645604, 136.990375574141 34.8727688253331, 136.990335416794 34.8727008016827, 136.990122944169 34.8723090435374, 136.989951029969 34.8720941222371, 136.98971910041 34.8718224164699, 136.989355393513 34.8714100098193, 136.989307262139 34.8713654275289, 136.989447363672 34.8713293623917, 136.989467500839 34.8713235457329, 136.990594878542 34.8711072158165, 136.990635546093 34.8712268654474, 136.990726797943 34.8714692766755, 136.991233027102 34.8725145565255)) ^^http://www.opengis.net/ont/geosparql#wktLiteral