メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.999030160495 43.5600769530443, 144.998971567056 43.5600430279188, 144.998619626644 43.559822890927, 144.998398779847 43.5596871114547, 144.99888637202 43.5592718888358, 144.998969328771 43.559343903149, 144.999567162764 43.5588355951482, 144.999696156275 43.5589163448883, 145.000032971543 43.5591271029741, 145.000190768746 43.5592245626052, 144.999242661845 43.5599061672714, 144.999030160495 43.5600769530443)) ^^http://www.opengis.net/ont/geosparql#wktLiteral