メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.985755851513 34.8804143759105, 136.986855879471 34.8812264514223, 136.985103042538 34.881915093022, 136.984824604801 34.8811789672617, 136.984653492597 34.8806661944901, 136.984363335011 34.879889975581, 136.984267684032 34.8796272698954, 136.984620586238 34.879533496878, 136.984629542391 34.8796043627007, 136.985755851513 34.8804143759105)) ^^http://www.opengis.net/ont/geosparql#wktLiteral