メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.758993421086 35.4352013896278, 136.758832554399 35.4356053370683, 136.758654944891 35.4360444017871, 136.756953202558 35.4356060318972, 136.757061172674 35.4352684556901, 136.757226134282 35.4346858388017, 136.757442831137 35.4343364437255, 136.759052076409 35.4347276307383, 136.758993421086 35.4352013896278)) ^^http://www.opengis.net/ont/geosparql#wktLiteral