メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.324175905838 43.1115306412643, 141.324445358175 43.1117916971707, 141.324809659209 43.1121798277874, 141.324455647098 43.1123633969404, 141.324127017964 43.1125440767926, 141.324084323044 43.1125807229825, 141.32331508031 43.1129835082261, 141.322671428121 43.1123101107352, 141.321949804458 43.1116012639505, 141.32237179313 43.1113852706731, 141.32274581397 43.1111862575054, 141.323097623756 43.1109958541931, 141.323471428103 43.110817301799, 141.324175905838 43.1115306412643)) ^^http://www.opengis.net/ont/geosparql#wktLiteral