メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.03417280323 34.9983912564714, 137.034405580581 34.9985643397362, 137.034561144186 34.9986994494043, 137.034044752555 34.9990739866071, 137.033805187557 34.9994132574599, 137.033608884877 34.99969123315, 137.03316094731 34.9995290388054, 137.03261727351 34.9993322278299, 137.032075722404 34.9991412621271, 137.032109254651 34.9990986197707, 137.032711464391 34.9983333119849, 137.033022961892 34.9980903966401, 137.033099246758 34.9980249827336, 137.033162119959 34.9979710334582, 137.033447454969 34.9977571751729, 137.03417280323 34.9983912564714)) ^^http://www.opengis.net/ont/geosparql#wktLiteral