メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.340754346067 43.0155503392712, 144.340968519584 43.0161169177084, 144.341184698792 43.0166746688472, 144.341357801756 43.0172056380341, 144.339540717687 43.0175680416282, 144.337861113678 43.0178985102863, 144.33767935309 43.017388370224, 144.337462499803 43.0168098801469, 144.337263233311 43.0162637707604, 144.337088628711 43.015755187239, 144.336869512067 43.0151321505419, 144.338508328271 43.0147823258104, 144.338722464177 43.0147408495808, 144.338736832519 43.0147380667098, 144.339425673354 43.0146000362411, 144.340328566939 43.0144191041255, 144.340754346067 43.0155503392712)) ^^http://www.opengis.net/ont/geosparql#wktLiteral