メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.332543746763 43.0444098306009, 141.332494707347 43.0444061317957, 141.332453444909 43.044755479549, 141.332417448814 43.0450602816142, 141.331776181813 43.0450256687322, 141.331281728268 43.0449904739079, 141.330752818582 43.0449511310145, 141.33083954129 43.0442872832384, 141.330850723587 43.0441228724115, 141.33091510472 43.0436062546583, 141.331928742509 43.043688448276, 141.33262808937 43.0437304178535, 141.3325725626 43.0442328308818, 141.332543746763 43.0444098306009)) ^^http://www.opengis.net/ont/geosparql#wktLiteral