メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.440741191661 43.1004473052748, 141.4391439287 43.101216995893, 141.439199390091 43.1012908846634, 141.43781526971 43.1023713763656, 141.437788547846 43.1023889090117, 141.437255561588 43.1018308490402, 141.436485911158 43.1010985131533, 141.435704696573 43.1005236997911, 141.435721291356 43.1005170664086, 141.436224761892 43.1003147981295, 141.437961520986 43.0996444619433, 141.438545799982 43.0994189849547, 141.439502351231 43.0990402937773, 141.440741191661 43.1004473052748)) ^^http://www.opengis.net/ont/geosparql#wktLiteral