メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.178272708553 34.2371005802237, 135.178681669688 34.2371240280471, 135.178668352818 34.2376841794555, 135.178643594478 34.2382172062212, 135.178239673023 34.2382068918811, 135.17782927587 34.2381997739163, 135.177844148895 34.2380130796103, 135.177846615109 34.2377589666863, 135.177856923343 34.2375094141842, 135.177863619283 34.2370816371133, 135.178272708553 34.2371005802237)) ^^http://www.opengis.net/ont/geosparql#wktLiteral