メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.056207666616 34.9974331613298, 137.056237561534 34.9974700934132, 137.056385513162 34.9976585530699, 137.056865286878 34.9982535438823, 137.057234496156 34.9986810259285, 137.05597023281 34.9992435388797, 137.054957014888 34.999698439431, 137.053996512204 35.0001337293418, 137.05280329455 35.0006751433244, 137.053523045467 34.9996127542366, 137.054049993162 34.9988639443456, 137.054562930921 34.9981603348035, 137.055444925865 34.9968662969274, 137.055573966456 34.9966399134528, 137.056207666616 34.9974331613298)) ^^http://www.opengis.net/ont/geosparql#wktLiteral