メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.998816241906 34.8986879039868, 136.999130588678 34.8990788610667, 136.999655543751 34.8997666082343, 136.999898459371 34.8996908793536, 137.000012472917 34.8999919039814, 136.999953566619 34.9000326719362, 136.999303427653 34.9005018154513, 136.997949649323 34.8989825021577, 136.997480098512 34.8984744848358, 136.997746394494 34.8979805909309, 136.997854967294 34.8977719221208, 136.998030627588 34.8978055497009, 136.998130117495 34.8979045683804, 136.998341712474 34.8981310772229, 136.998667932694 34.8984928245, 136.998816241906 34.8986879039868)) ^^http://www.opengis.net/ont/geosparql#wktLiteral