メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.0874489857 35.1367624212005, 136.086642190762 35.1363075033291, 136.087428056652 35.1353520852902, 136.088211461268 35.1358004655447, 136.0874489857 35.1367624212005)) ^^http://www.opengis.net/ont/geosparql#wktLiteral