メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.457491220598 43.0484257441762, 144.457790719401 43.0490492460308, 144.457207163623 43.0491942037363, 144.456629945783 43.0493235637712, 144.456056461501 43.0494554512685, 144.455774157483 43.0488297139333, 144.455509256752 43.0482399284064, 144.456103882937 43.0481096052558, 144.456668792469 43.0479742965509, 144.457222684886 43.0478312508785, 144.457491220598 43.0484257441762)) ^^http://www.opengis.net/ont/geosparql#wktLiteral