メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.440629379891 43.1296296538683, 141.441101260376 43.1296654869949, 141.441574797506 43.129692328696, 141.442033675516 43.1297239879678, 141.442456221859 43.1297546143974, 141.442919351202 43.129777016288, 141.442874128206 43.1301377627537, 141.442797308293 43.1307505558565, 141.442360056157 43.1306293844966, 141.441932036744 43.1305108080168, 141.441482827861 43.1303863842801, 141.441030033179 43.1302608071054, 141.440576522744 43.1301350122898, 141.440070775364 43.1299947804163, 141.44013482593 43.129594570846, 141.440629379891 43.1296296538683)) ^^http://www.opengis.net/ont/geosparql#wktLiteral