メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.747666110192 35.4247604846454, 136.747708649933 35.4249523162113, 136.747711495711 35.4250508800342, 136.747717186386 35.4252398744556, 136.747497640438 35.4252966193241, 136.747047779144 35.424898002251, 136.746971096045 35.4248374902949, 136.74659188372 35.4243706531667, 136.746945853377 35.424213085949, 136.7474934048 35.4239619169986, 136.747573574802 35.4244377799926, 136.747666110192 35.4247604846454)) ^^http://www.opengis.net/ont/geosparql#wktLiteral