メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.316940663385 43.0713721832597, 141.317593255473 43.0709746580455, 141.317767483056 43.0713024754851, 141.317936693038 43.0715880542893, 141.318323767582 43.0722914752516, 141.317804358236 43.0728256842983, 141.317367928647 43.0732709672408, 141.31674713486 43.0739040718196, 141.316708185372 43.0739230942319, 141.316253033191 43.0735213878041, 141.316242805445 43.0735125830599, 141.315892328114 43.0732115965406, 141.315488020256 43.0728610797948, 141.315072736429 43.0725009072447, 141.315974497626 43.0719572446894, 141.316506114134 43.0716368731829, 141.316940663385 43.0713721832597)) ^^http://www.opengis.net/ont/geosparql#wktLiteral