メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.772682858883 35.0809775204787, 136.772762011142 35.0809157342617, 136.772841241297 35.0808377503875, 136.773305727038 35.0821048594985, 136.772570835269 35.0822240201676, 136.771300062756 35.0823748317369, 136.770015503083 35.0825187703352, 136.769188104157 35.0826077742012, 136.768768114993 35.0826640845664, 136.768294076533 35.0827356409571, 136.768307458949 35.0822423577043, 136.768334401625 35.0817796837702, 136.769600690617 35.0814680945265, 136.770970737061 35.0810987993184, 136.772538647042 35.0806771136701, 136.772682858883 35.0809775204787)) ^^http://www.opengis.net/ont/geosparql#wktLiteral