メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.763249760718 43.147888016276, 140.760411214425 43.1500444051574, 140.760348646352 43.1499589857258, 140.758561562392 43.1476103869642, 140.758877006893 43.1473684229649, 140.760151142398 43.1463851726295, 140.760795373543 43.1458649060341, 140.76318215542 43.1478320007866, 140.763249760718 43.147888016276)) ^^http://www.opengis.net/ont/geosparql#wktLiteral