メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.778248520086 35.4432260168287, 136.777949076358 35.4432406930142, 136.777946737504 35.4432082561134, 136.776593733846 35.443354339529, 136.776527737051 35.4429877625893, 136.777384491507 35.4429014270882, 136.777520011969 35.4429035511547, 136.777754224668 35.4428807798447, 136.778209812777 35.4427663579865, 136.778230227125 35.4429768076646, 136.778248520086 35.4432260168287)) ^^http://www.opengis.net/ont/geosparql#wktLiteral