メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.319553197437 34.8536284429019, 138.320133252297 34.8535877674509, 138.320673086114 34.8535499208566, 138.32117047373 34.853454680022, 138.321670925502 34.8533590181026, 138.322222542344 34.8532535402117, 138.322349138186 34.8531201372191, 138.322399959308 34.8532196512315, 138.322455228591 34.8533277671729, 138.322553708449 34.8535818279077, 138.322762564336 34.8545629953684, 138.322065611555 34.8546885200398, 138.321565428289 34.8547718373197, 138.321053929458 34.8548485340605, 138.320440452734 34.8549504409699, 138.319854517887 34.8550349857619, 138.318985288262 34.8551685732868, 138.318046472497 34.8553086045298, 138.317538638247 34.8553750053462, 138.317361944559 34.8545632353924, 138.317191971367 34.8538292337695, 138.317704996416 34.8537858695602, 138.318666345344 34.8536965071294, 138.319103745282 34.853662938056, 138.319553197437 34.8536284429019)) ^^http://www.opengis.net/ont/geosparql#wktLiteral