メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.328236842264 43.0508553086209, 141.328175983271 43.0513583772422, 141.328147635247 43.0515926274669, 141.328145797699 43.0516064670006, 141.328132275704 43.0517088288466, 141.327052039267 43.0515505273499, 141.327096763249 43.0513464426417, 141.327140797817 43.0511454976986, 141.327234255411 43.0507190149489, 141.327364403382 43.0501873891526, 141.327500566493 43.0496318298274, 141.328384887173 43.0497685742556, 141.32832918453 43.0501773733632, 141.328236842264 43.0508553086209)) ^^http://www.opengis.net/ont/geosparql#wktLiteral