メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((129.837264771291 32.6608221058836, 129.837125953783 32.6608220814592, 129.837085437627 32.6608212897063, 129.8370417243 32.6608710934021, 129.836839984756 32.660876600525, 129.836834002174 32.6606361746037, 129.836819632534 32.6604743746484, 129.837328512529 32.6604599693766, 129.837257267889 32.66069196284, 129.837257647615 32.6607936287923, 129.837264771291 32.6608221058836)) ^^http://www.opengis.net/ont/geosparql#wktLiteral