メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.700966238081 44.3640971945334, 141.699883668212 44.3648132248677, 141.699443274626 44.364468383692, 141.698805769275 44.3639676472983, 141.699501547158 44.3635212075837, 141.699900160471 44.3632606483705, 141.699994770822 44.3633311725299, 141.7003730315 44.363632575036, 141.700808881716 44.3639705361103, 141.700966238081 44.3640971945334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral