メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.724263226104 35.2660482274465, 136.725312717675 35.265935407425, 136.726169772225 35.2658485733751, 136.726737245488 35.2665600438853, 136.727475560057 35.267294872528, 136.725867232082 35.26752731016, 136.726136395918 35.2692437434394, 136.722985779697 35.269604848829, 136.72230066754 35.2696778452048, 136.721897613781 35.2673776977142, 136.721646081564 35.2667267220915, 136.722008116708 35.2666129798891, 136.723740888757 35.266115628325, 136.724263226104 35.2660482274465)) ^^http://www.opengis.net/ont/geosparql#wktLiteral