メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.396526931349 34.8347076817941, 137.396435956518 34.8348533620447, 137.395994469673 34.8354350318604, 137.395467477512 34.8350724575398, 137.395711949888 34.8347083661612, 137.39598184945 34.8343197173268, 137.396240185359 34.8339827859614, 137.396643500821 34.8334309796902, 137.397001159286 34.8336651219808, 137.39696097137 34.833735275678, 137.397308027716 34.8339729582657, 137.396975301828 34.8343100326457, 137.396526931349 34.8347076817941)) ^^http://www.opengis.net/ont/geosparql#wktLiteral