メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.389259634259 43.7983438052272, 142.389244524649 43.7983325907449, 142.38830111215 43.797626964187, 142.387591367896 43.797099865681, 142.389640810168 43.7956430348961, 142.39031064031 43.7958119303976, 142.392102446421 43.7962704242351, 142.390749109302 43.7972358482781, 142.389718882901 43.7979976870618, 142.389259634259 43.7983438052272)) ^^http://www.opengis.net/ont/geosparql#wktLiteral