メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.263259383036 44.018648176424, 144.263483822508 44.0186693068744, 144.263364783331 44.019262904644, 144.262341968017 44.0191689390647, 144.26207160303 44.0191441162347, 144.261786085269 44.0191149048903, 144.261911098034 44.018864356075, 144.261988464007 44.018737580094, 144.262052314335 44.0187239825455, 144.262252376712 44.0186812844095, 144.262406273339 44.0185701458452, 144.263259383036 44.018648176424)) ^^http://www.opengis.net/ont/geosparql#wktLiteral