メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.845598466839 35.1016907519112, 138.845494773925 35.1015226561011, 138.844945536516 35.1019296772231, 138.844759601987 35.1011370531615, 138.844836998023 35.1011250003602, 138.845219740508 35.1010769311411, 138.846972114232 35.1008012576439, 138.847859304255 35.1006753958895, 138.84793582669 35.1011278857612, 138.847064766773 35.1012241214526, 138.847057921833 35.1011909695342, 138.846888421042 35.1012480788936, 138.846804964516 35.1012707839268, 138.846565221941 35.1013137998901, 138.845940088446 35.1014065138264, 138.845598466839 35.1016907519112)) ^^http://www.opengis.net/ont/geosparql#wktLiteral