メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.129896786951 37.9435415733716, 139.131989403557 37.9445104646444, 139.137585326803 37.9471649639271, 139.136977571251 37.94816473335, 139.135119196752 37.9473047485007, 139.13116855172 37.9454667273683, 139.130710972003 37.9452770173118, 139.130195034068 37.9451858876132, 139.128614558881 37.9449013939095, 139.126728950218 37.9445972529289, 139.126070895684 37.944507004426, 139.126843545188 37.9434524826139, 139.127545670316 37.9424592900149, 139.129896786951 37.9435415733716)) ^^http://www.opengis.net/ont/geosparql#wktLiteral