メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.738417413773 35.1682096116584, 136.739107916904 35.1681722620462, 136.739045612728 35.1693829206014, 136.738995230052 35.1702171566067, 136.737966986323 35.1702671119532, 136.737742851358 35.1702809658141, 136.736976178767 35.170325147856, 136.736612490588 35.1703494192123, 136.736505130283 35.1691088643717, 136.736444515987 35.1685273305163, 136.736426224222 35.1684343812488, 136.736402418792 35.1683134561594, 136.737394783273 35.1682649345858, 136.737997355152 35.1682323510401, 136.738417413773 35.1682096116584)) ^^http://www.opengis.net/ont/geosparql#wktLiteral