メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.326537736064 43.122998446621, 141.326858804303 43.1233170884519, 141.327244781844 43.1237121351834, 141.326849749884 43.1239187293642, 141.326531169586 43.1240978794779, 141.326177005819 43.1242936193963, 141.325756518441 43.1245259542206, 141.325037134846 43.1238032955221, 141.324320382871 43.1231047058355, 141.324740209839 43.1228776449392, 141.325089859804 43.1226817323799, 141.325454579787 43.1224859405984, 141.325823124144 43.1222846928158, 141.3261952316 43.1226563529181, 141.326537736064 43.122998446621)) ^^http://www.opengis.net/ont/geosparql#wktLiteral