メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.412475143744 43.130638088741, 141.412845632827 43.1307695954642, 141.413174887633 43.1308969991579, 141.412665539481 43.131652677134, 141.412156333248 43.1323969602626, 141.412057131903 43.1325451180328, 141.411962930223 43.1326857173281, 141.41165159706 43.1331506272655, 141.410970606221 43.1328881882344, 141.410180694391 43.1326001844642, 141.409943810533 43.1325010249443, 141.410436679039 43.131780754859, 141.410950884936 43.1310370791068, 141.411044534642 43.1309016816732, 141.411425895662 43.1303500097764, 141.411466613973 43.1302864505105, 141.412120062407 43.1305104925721, 141.412475143744 43.130638088741)) ^^http://www.opengis.net/ont/geosparql#wktLiteral