メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.87177719776 38.0166195239858, 140.868577508325 38.016297108467, 140.86562967159 38.0160003062906, 140.863363287671 38.0157735161265, 140.861727885359 38.0156098916985, 140.861843389328 38.0153730683668, 140.862092149472 38.0151667644508, 140.862690354291 38.014772995496, 140.863371570168 38.0143603388072, 140.864005268624 38.0139147463648, 140.864414142742 38.0139616647062, 140.865498386206 38.0140644386279, 140.867326349118 38.0142444294972, 140.869266848949 38.0144430819424, 140.872074549016 38.0147201348375, 140.87177719776 38.0166195239858)) ^^http://www.opengis.net/ont/geosparql#wktLiteral