メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.313403829729 43.1189378696484, 141.313864411021 43.1193877203147, 141.314303418252 43.1198361270713, 141.313250541902 43.1204012644338, 141.312092556459 43.1210203927136, 141.311880301835 43.1207931848683, 141.31164850625 43.1205632149311, 141.311403285237 43.1203197709002, 141.31119129528 43.1201069808032, 141.311154607446 43.1200701799774, 141.310905931597 43.1198205882209, 141.310710440352 43.1196277650958, 141.31186395238 43.1190178299276, 141.312928953186 43.1184563939718, 141.313403829729 43.1189378696484)) ^^http://www.opengis.net/ont/geosparql#wktLiteral