メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.410970606221 43.1328881882344, 141.41165159706 43.1331506272655, 141.411147197455 43.1338997228718, 141.410628219686 43.1346676968515, 141.410087434227 43.1354424000026, 141.409377279553 43.1351905672457, 141.408703437593 43.1349242301682, 141.408616823896 43.1348327211322, 141.40831341926 43.1345700389965, 141.408855584881 43.1340320870977, 141.409194460114 43.1335703436483, 141.409353767004 43.1333532866649, 141.409899323213 43.132566103225, 141.409943810533 43.1325010249443, 141.410180694391 43.1326001844642, 141.410970606221 43.1328881882344)) ^^http://www.opengis.net/ont/geosparql#wktLiteral