メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.043905633688 34.8543994280145, 137.043973691745 34.8546752937811, 137.04392451493 34.8548606809812, 137.043858434053 34.8552226149523, 137.043819787821 34.8555508407469, 137.043523235325 34.8556625890816, 137.042546930729 34.8563445282338, 137.041024160201 34.8574324018696, 137.040706679364 34.8571424695504, 137.04040577606 34.8568874158424, 137.040218202263 34.8567275587044, 137.041400169493 34.8558990799566, 137.041779150307 34.8556260717817, 137.042883737372 34.854837078283, 137.043041403503 34.8547219499093, 137.0437239322 34.8542331023497, 137.043905633688 34.8543994280145)) ^^http://www.opengis.net/ont/geosparql#wktLiteral