メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.913517545705 43.5258875892302, 141.913408329306 43.5259233464152, 141.912760887993 43.5260458556206, 141.912175546186 43.5261415027707, 141.911987088387 43.5261626086452, 141.911808783101 43.5261440456434, 141.911736915119 43.5261546641284, 141.911421916048 43.5250889326076, 141.911087334502 43.5239243672044, 141.910891827716 43.5232112475169, 141.912620851345 43.522925615157, 141.913776645082 43.5227505905025, 141.914640775631 43.5226264282224, 141.914649124473 43.5226543713368, 141.915139609984 43.5242956548664, 141.915272084915 43.5247562866045, 141.915104411513 43.5255942200126, 141.915020664913 43.525625129823, 141.91485693861 43.5256571080107, 141.91390957804 43.5257985789934, 141.913636713018 43.5258482748011, 141.913517545705 43.5258875892302)) ^^http://www.opengis.net/ont/geosparql#wktLiteral