メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.576008719509 43.3262915670049, 145.575287718338 43.325993155967, 145.573995025954 43.3253926817519, 145.573365290711 43.3251212792014, 145.574761206329 43.3233587700367, 145.574937575731 43.3231174363961, 145.57521606771 43.3227355870909, 145.578019983397 43.3238617801601, 145.57794319796 43.3241837578785, 145.578001545215 43.3243559585828, 145.578359925258 43.3246320042414, 145.578070773179 43.3244664537221, 145.577677960834 43.3244625620653, 145.577403612651 43.3245677312005, 145.576008719509 43.3262915670049)) ^^http://www.opengis.net/ont/geosparql#wktLiteral