メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.861748780819 43.3369196914659, 141.861922355207 43.337476913101, 141.861103156703 43.3376135265764, 141.861055567282 43.3374294613453, 141.860895585231 43.3374546586091, 141.860785678595 43.3370578551275, 141.860888715563 43.3370404125359, 141.86085689692 43.3369335488035, 141.860770145007 43.3369430998389, 141.860720786422 43.3366961573652, 141.860825536215 43.3366858932215, 141.860738695745 43.3363518294458, 141.860767148436 43.3363470028596, 141.861550339443 43.3362194109208, 141.861677701254 43.3366790047896, 141.861748780819 43.3369196914659)) ^^http://www.opengis.net/ont/geosparql#wktLiteral