メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.105032037344 43.8202826088779, 144.105507215178 43.8211747853819, 144.105249430679 43.8212492059688, 144.10460042705 43.8214549776711, 144.104511894918 43.8214814142757, 144.104398144183 43.821283168193, 144.103828086175 43.8202935180221, 144.103795237356 43.8202363366925, 144.103854894941 43.8202183326864, 144.104843540362 43.8199287467122, 144.105032037344 43.8202826088779)) ^^http://www.opengis.net/ont/geosparql#wktLiteral