メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.975978508452 37.880839262195, 138.976132323333 37.880907766835, 138.976443312504 37.8810143543733, 138.976623984479 37.881074866129, 138.976791739779 37.8811217738905, 138.977555085971 37.8813246583486, 138.977648060024 37.8812331951628, 138.977715910934 37.8812885316137, 138.978043302674 37.8814593863516, 138.978698082095 37.8817930665841, 138.979178857073 37.8820331250044, 138.979703809665 37.8823060853615, 138.979958371615 37.8824407685693, 138.980022539487 37.8824682419806, 138.979166969914 37.8839502239564, 138.979148385773 37.8839397412615, 138.978871827751 37.8837829041749, 138.978631618045 37.8836498518447, 138.97849488412 37.8835732555196, 138.978314304596 37.8834802254629, 138.977995307131 37.8833041284473, 138.977660053182 37.8831203546822, 138.977295550847 37.8829316289272, 138.976991208559 37.8827618056308, 138.976115765954 37.8822949791796, 138.975313577311 37.8818728999722, 138.975017326505 37.881716977229, 138.974981643029 37.8816992408737, 138.974688661331 37.8815334469308, 138.974842078028 37.8813797996752, 138.974927435821 37.8812978009092, 138.975059753412 37.8811780246137, 138.975658376382 37.8806772416628, 138.975978508452 37.880839262195)) ^^http://www.opengis.net/ont/geosparql#wktLiteral