メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.874363475694 35.2395874461111, 136.874365688661 35.2401412654168, 136.872410531801 35.2401627035794, 136.872402430152 35.2399289465295, 136.872377852243 35.239320423369, 136.872878513524 35.2392320659572, 136.87336144801 35.2391797204036, 136.873664336827 35.2391699647989, 136.874016318612 35.2391496926659, 136.87435442722 35.2391738946943, 136.874363475694 35.2395874461111)) ^^http://www.opengis.net/ont/geosparql#wktLiteral