メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.849334528538 43.3385768611878, 141.849139588905 43.3386046611972, 141.849397040806 43.3394442766983, 141.848310147777 43.3396181829381, 141.847247641321 43.3397779581381, 141.845970611144 43.3399831731731, 141.845453767508 43.3382451272842, 141.846715685962 43.3380358543688, 141.847783428028 43.3378697027892, 141.848888919957 43.3376976964746, 141.850113170261 43.3375071755485, 141.85025821329 43.3379925133716, 141.850349738278 43.338337221726, 141.850381877982 43.3384062543559, 141.84994378663 43.3384794811123, 141.849636714635 43.3385317142129, 141.849334528538 43.3385768611878)) ^^http://www.opengis.net/ont/geosparql#wktLiteral