メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.379800361248 43.0901027754255, 141.380008330776 43.0910752306099, 141.380053122734 43.091279732415, 141.380118287019 43.091549933894, 141.379407566763 43.0916192242986, 141.378721146582 43.0916666817421, 141.378653242249 43.0908332726987, 141.378647108625 43.0908192306895, 141.378462167114 43.0903955046438, 141.378468080471 43.0903913304054, 141.378998120802 43.0900430892177, 141.379257328693 43.0898793668126, 141.379563680646 43.089659529196, 141.379692307716 43.0899067947701, 141.379774924206 43.0900423815884, 141.379800361248 43.0901027754255)) ^^http://www.opengis.net/ont/geosparql#wktLiteral