メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.76964884769 43.2112754825508, 140.770452405306 43.211289754559, 140.771578538049 43.211308194843, 140.77158155953 43.2115654221587, 140.771582858794 43.2116709300396, 140.771562786855 43.2123989139496, 140.771556064615 43.2126773947508, 140.771116987808 43.2126794493624, 140.771123711954 43.2124009684972, 140.770425967503 43.2123842043715, 140.769600782441 43.212388992697, 140.76873943033 43.2123546267993, 140.768794263138 43.2122779762271, 140.7688121807 43.2121931119333, 140.768849787331 43.2115126853018, 140.768858414058 43.2112632734456, 140.76964884769 43.2112754825508)) ^^http://www.opengis.net/ont/geosparql#wktLiteral