メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.028839202877 39.3840867638594, 140.028578370592 39.3841268358404, 140.028523944246 39.3840403855633, 140.028469861296 39.3839157905885, 140.028362115112 39.3836378893116, 140.028326587355 39.3835086372131, 140.028297154383 39.3833937140522, 140.028253058363 39.3832046501685, 140.028616869411 39.3826432829044, 140.028670348506 39.3826854582758, 140.028683323245 39.3829633380772, 140.028746382965 39.383509710522, 140.028791521148 39.3838779691765, 140.028839202877 39.3840867638594)) ^^http://www.opengis.net/ont/geosparql#wktLiteral