メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.910243308453 35.2759477423376, 136.910216028907 35.2769095167147, 136.910207909039 35.2771964019873, 136.910167771377 35.2772197667313, 136.910261001192 35.2775913739655, 136.910472130661 35.2783690108876, 136.91036528421 35.2783859666946, 136.909701363516 35.2784721607283, 136.909667979925 35.2784713152074, 136.908492718729 35.2786345005529, 136.90727341037 35.2788074372579, 136.906855176776 35.2788656886327, 136.906702991943 35.2788869094754, 136.906745159516 35.2779543754229, 136.906902375999 35.2756265940685, 136.906989823544 35.2746045197272, 136.908759040084 35.2746652593065, 136.910290062168 35.2747059383737, 136.910243308453 35.2759477423376)) ^^http://www.opengis.net/ont/geosparql#wktLiteral