メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.762348669224 35.4309931156265, 136.762254179394 35.4312470165765, 136.761133587811 35.4329275125625, 136.760171904731 35.4323715931126, 136.761377558826 35.4308712744067, 136.761448404578 35.4307867956766, 136.761506300568 35.430814099068, 136.761531402448 35.430766720088, 136.762018612959 35.4309610728938, 136.762026207146 35.4309307121368, 136.76224103581 35.4309758233881, 136.762348669224 35.4309931156265)) ^^http://www.opengis.net/ont/geosparql#wktLiteral