メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.882277860615 43.3292557167978, 141.882743789467 43.3291876517706, 141.882920581498 43.3291583974195, 141.883098883766 43.3291342814748, 141.883471089919 43.3303641080404, 141.88307585651 43.3303105219355, 141.8825533186 43.3302352177463, 141.882012841286 43.3301595729017, 141.880356885337 43.3299274477928, 141.879289557166 43.3297433354596, 141.879630670528 43.3296971048207, 141.879623675658 43.3296712716821, 141.881783700409 43.3293359258759, 141.881816800152 43.3293307576517, 141.882277860615 43.3292557167978)) ^^http://www.opengis.net/ont/geosparql#wktLiteral