メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.26303420468 44.020809499675, 144.26198063251 44.0206943178386, 144.25997110903 44.0204746074516, 144.260195320082 44.0204253724247, 144.260565619669 44.0203450732717, 144.261017169742 44.0202412097655, 144.261095594273 44.0202205045581, 144.263148837011 44.020413519869, 144.263079859995 44.0207649149634, 144.26303420468 44.020809499675)) ^^http://www.opengis.net/ont/geosparql#wktLiteral