メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.320016238915 43.1288029887757, 141.320632771562 43.1293934112872, 141.320663871321 43.1296288492838, 141.320324595219 43.1298088237462, 141.319991995245 43.1299852636392, 141.319817756536 43.1300777444931, 141.319610388651 43.1301956277523, 141.319252022199 43.1303993558131, 141.318909052173 43.1305943463585, 141.318619352137 43.1307590319554, 141.318529868843 43.1308090856457, 141.317760808111 43.1300388447773, 141.317114959011 43.1293824106367, 141.317452413922 43.1291837238287, 141.317819573892 43.1289826049648, 141.318181101372 43.1287855170695, 141.318521416672 43.1286003531713, 141.318555690981 43.128581712651, 141.318881792223 43.12839657268, 141.319328024298 43.1281472079638, 141.320016238915 43.1288029887757)) ^^http://www.opengis.net/ont/geosparql#wktLiteral