メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.563486547327 36.5278232881379, 136.563423799009 36.5269724200762, 136.563859294753 36.5269863705514, 136.563905330796 36.5274510911997, 136.565341681606 36.5275058022749, 136.565318420746 36.5278954419007, 136.566444343196 36.5279384542975, 136.566385325062 36.5287700825172, 136.565782608182 36.5287947133173, 136.564502461087 36.5288469511323, 136.564562409855 36.5278665548246, 136.563928225279 36.5278423169308, 136.563486547327 36.5278232881379)) ^^http://www.opengis.net/ont/geosparql#wktLiteral