メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.2092067238 38.4204806738362, 141.21005381031 38.4212268210023, 141.210730635757 38.4218367051547, 141.21048293709 38.4223608890196, 141.209270837689 38.4219536073682, 141.206850323279 38.4211475683944, 141.205800344248 38.4207744950999, 141.206163994424 38.4202717722754, 141.20621082897 38.4202016594181, 141.206602324675 38.4196956086188, 141.206891345493 38.4192950313521, 141.206984320854 38.419166168693, 141.207274819717 38.4187635356734, 141.208583956074 38.4199320990776, 141.2092067238 38.4204806738362)) ^^http://www.opengis.net/ont/geosparql#wktLiteral