メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.347076972037 43.1216855012409, 141.347302940663 43.1217199065684, 141.347758798209 43.1217833313152, 141.347624847205 43.1223073355373, 141.347487310872 43.1228204090393, 141.347385498634 43.1231759522505, 141.347381331476 43.1232112936345, 141.347347828303 43.1232110305245, 141.347294731823 43.1234005635378, 141.347004363105 43.1233186037458, 141.346861431909 43.1232778164078, 141.346049251854 43.123046240592, 141.346093814279 43.122745527515, 141.346095738134 43.1226149476891, 141.346231408919 43.1221059449887, 141.346372743002 43.1215901631227, 141.34682485422 43.1216535627474, 141.347076972037 43.1216855012409)) ^^http://www.opengis.net/ont/geosparql#wktLiteral