メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.989970731247 43.5580928748849, 144.989700198112 43.5583063463515, 144.989451417137 43.5580700301686, 144.989417623766 43.5580626129948, 144.989564453675 43.5580508649552, 144.989715472836 43.5580633102287, 144.989326860168 43.5577925514521, 144.989178844079 43.5577781354022, 144.989101928492 43.557774987067, 144.98941193986 43.5574299888675, 144.989468824778 43.5574604783713, 144.989659855813 43.557574841117, 144.989954488194 43.5572660017778, 144.990080312939 43.5573327044683, 144.990581277925 43.5576075859731, 144.990231843371 43.5578806485236, 144.990093398134 43.5579961624172, 144.989970731247 43.5580928748849)) ^^http://www.opengis.net/ont/geosparql#wktLiteral