メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.32287261018 43.0611630757871, 141.32314232103 43.0612013410311, 141.323075576528 43.0614994872677, 141.323265740394 43.0615274021977, 141.323191210908 43.0618265395403, 141.322816444259 43.0617772248808, 141.322240200527 43.0616997604763, 141.32182300013 43.0616403922209, 141.321952149369 43.0611100355292, 141.32196743828 43.0610439095282, 141.322114639989 43.0604230436529, 141.323246188584 43.0605848349993, 141.322967639227 43.0609865470322, 141.32287261018 43.0611630757871)) ^^http://www.opengis.net/ont/geosparql#wktLiteral