メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.840239168946 38.9131671551388, 139.840490482664 38.9139581111926, 139.840507658966 38.9140119577293, 139.839649248482 38.9142003001352, 139.838962478765 38.9144118478471, 139.838524183338 38.9145438722659, 139.837975305808 38.9134587888914, 139.837757108774 38.9130403483224, 139.837653244653 38.9128659755127, 139.837462096563 38.9125881022739, 139.837443647678 38.9125674645333, 139.837290913777 38.9123965440511, 139.83717659887 38.912286972299, 139.837360876356 38.9120113905451, 139.83748329453 38.91184366629, 139.837588114417 38.9116458794354, 139.837648499977 38.9113336974103, 139.837712681153 38.9107494632801, 139.837766403896 38.910340173165, 139.838422592251 38.9109368906307, 139.83905077881 38.9115270325686, 139.839824651523 38.9122778248429, 139.83997736401 38.9124119326679, 139.840239168946 38.9131671551388)) ^^http://www.opengis.net/ont/geosparql#wktLiteral