メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.241020131263 38.0278712278729, 138.240844238078 38.0279036434888, 138.240475712681 38.0275567857883, 138.24043781847 38.0274702631956, 138.240324152314 38.0273590746813, 138.240327247039 38.0273212104849, 138.240450907608 38.0272363119496, 138.240643097891 38.0274129949129, 138.240875842033 38.0276270777004, 138.241216674533 38.0274356397573, 138.24144730804 38.027694080454, 138.241490384718 38.0277620336122, 138.24142320348 38.0277787794964, 138.241233917739 38.0278359402305, 138.241020131263 38.0278712278729)) ^^http://www.opengis.net/ont/geosparql#wktLiteral