メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.726358922082 35.4371654059678, 136.725825952169 35.4372470508905, 136.725578188041 35.436529737167, 136.726136754006 35.4363528395629, 136.726360612492 35.4361833453997, 136.726492365996 35.4361002387879, 136.726594283858 35.4360446611604, 136.726597558618 35.4360439682176, 136.726804867651 35.435974515492, 136.727031170915 35.435948473877, 136.727152607803 35.4367503934774, 136.727114710031 35.4370189042147, 136.727125441754 35.4370547508013, 136.726358922082 35.4371654059678)) ^^http://www.opengis.net/ont/geosparql#wktLiteral