メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.97077005027 35.2245536037164, 136.972064413606 35.2245902192561, 136.972027719089 35.225524166908, 136.971991551807 35.2264443837202, 136.971960524985 35.2269374607423, 136.96932176225 35.2268332917161, 136.968703495308 35.226829173688, 136.968744881885 35.2258875574557, 136.968788550776 35.2250129817333, 136.969379406388 35.2250158589502, 136.969339452503 35.2245040032083, 136.969409179726 35.2245063715144, 136.969532007858 35.2245186860804, 136.969698807808 35.2245274107861, 136.970676829007 35.2245513383257, 136.97077005027 35.2245536037164)) ^^http://www.opengis.net/ont/geosparql#wktLiteral