メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.37946478986 43.0440897558938, 141.378431942318 43.0447368125822, 141.375742768091 43.0423503284164, 141.376044056412 43.0421529607115, 141.376302629867 43.0420127971303, 141.376577157287 43.0418496854057, 141.377083960205 43.0422991634863, 141.378372664124 43.0415254306793, 141.378410938651 43.0415580744654, 141.378733526007 43.041833622157, 141.378988092557 43.0420510512766, 141.379552273736 43.0425330257261, 141.379750720724 43.0427052266269, 141.380128957456 43.0430333787709, 141.380563655192 43.0434105564004, 141.380251609812 43.0436233274531, 141.379829295966 43.0438697905587, 141.37946478986 43.0440897558938)) ^^http://www.opengis.net/ont/geosparql#wktLiteral