メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.108784531271 37.9116659293908, 140.109052235056 37.9126006749933, 140.108365881604 37.9126595225001, 140.106040362384 37.912880854456, 140.105115000422 37.912962421466, 140.103831491025 37.9130838575176, 140.103157315881 37.9131502114485, 140.10314471677 37.9127987424453, 140.103116716643 37.9121767366566, 140.103079884785 37.9111592182168, 140.104729780424 37.9110359743966, 140.105636895713 37.9109689386025, 140.106533466244 37.9108900049399, 140.107794940532 37.9107913507231, 140.108529482625 37.9107046459411, 140.108784531271 37.9116659293908)) ^^http://www.opengis.net/ont/geosparql#wktLiteral