メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.199633277196 34.8210241784195, 137.199018672324 34.8217230048918, 137.19841733836 34.8211710148216, 137.198225993907 34.8209456971174, 137.198444517562 34.8206977282189, 137.198649381498 34.8204497626321, 137.198922541642 34.8201454343994, 137.199250576263 34.8205735460233, 137.199633277196 34.8210241784195)) ^^http://www.opengis.net/ont/geosparql#wktLiteral