メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.867801802277 35.2587941940369, 136.867982204756 35.259372888702, 136.868041141204 35.2595609252078, 136.867796364883 35.2596239105941, 136.86718508817 35.2597554955593, 136.866570805794 35.25990967497, 136.86657322037 35.2596576352216, 136.866594250216 35.2589910569465, 136.866632392617 35.2583117047584, 136.86759078409 35.2581135902956, 136.867801802277 35.2587941940369)) ^^http://www.opengis.net/ont/geosparql#wktLiteral