メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.331021682297 43.1183885947132, 141.331376313828 43.118728942357, 141.3317172577 43.1190795164742, 141.331714645274 43.1190809024682, 141.330997947652 43.1194731216178, 141.33063591744 43.119671274329, 141.330205931118 43.1199065750652, 141.329720549183 43.1194119285308, 141.329512692853 43.119188233085, 141.329256841761 43.1189385525861, 141.329191933617 43.1188751575504, 141.32882018037 43.1185122305461, 141.329617246481 43.1180937381822, 141.329996385876 43.1178938978915, 141.330353846663 43.117705415995, 141.330691308388 43.118050621173, 141.331021682297 43.1183885947132)) ^^http://www.opengis.net/ont/geosparql#wktLiteral