メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.404776838169 44.174619000078, 142.404489521218 44.1745849155989, 142.404489156727 44.1745622924394, 142.404487099661 44.1744341083226, 142.404384836677 44.1742263201201, 142.404166195903 44.1738620237816, 142.404038313278 44.1736262654644, 142.403896345348 44.1733645630168, 142.403786820306 44.1727131400959, 142.403759813379 44.1725558078856, 142.405195553708 44.172791668269, 142.405251060194 44.1728013839203, 142.404776838169 44.174619000078)) ^^http://www.opengis.net/ont/geosparql#wktLiteral