メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.355241703858 43.7514031000343, 142.355818392858 43.7517742800789, 142.355352993941 43.7525961731015, 142.35514758195 43.752961823704, 142.354823990996 43.7534197387515, 142.354546759161 43.7536803418068, 142.353954524863 43.7532941400474, 142.353446476779 43.7529290250864, 142.352953505099 43.7526028517705, 142.353157394878 43.7524358122221, 142.352942774551 43.7522893698439, 142.353117485535 43.7522325311737, 142.353401413988 43.7521401332067, 142.353986689907 43.7519076230283, 142.354463337066 43.7517014577168, 142.355108695132 43.7513069360698, 142.355241703858 43.7514031000343)) ^^http://www.opengis.net/ont/geosparql#wktLiteral