メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.140512836489 39.4108629033275, 141.140522360235 39.4108617035102, 141.141036958517 39.4107243098493, 141.141704780762 39.4105354852871, 141.142671946056 39.4098739393913, 141.143160019519 39.4123182650694, 141.142509271627 39.4123347084341, 141.141071579523 39.4130018252823, 141.13841680782 39.4142390535153, 141.136929951522 39.4123281521517, 141.139634207046 39.4123210452925, 141.139613944691 39.4111398144793, 141.140545622607 39.4111163864549, 141.140512764002 39.4108664886032, 141.140512836489 39.4108629033275)) ^^http://www.opengis.net/ont/geosparql#wktLiteral