メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.387066563087 43.0417334191923, 141.387573110327 43.0421653367697, 141.387195408705 43.042385438902, 141.386483556559 43.04283046979, 141.386004849029 43.0423825812857, 141.386058676482 43.0423458529275, 141.385520033663 43.0418306969966, 141.38649413271 43.0412343298193, 141.387066563087 43.0417334191923)) ^^http://www.opengis.net/ont/geosparql#wktLiteral