メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.308375322759 36.6110911528928, 137.307978613207 36.6113436221276, 137.307200515798 36.6121358768528, 137.307135673281 36.6122090368655, 137.306790534584 36.6125984573912, 137.306745029085 36.612649768173, 137.304560066201 36.610720853179, 137.305137949959 36.6103558800533, 137.306112357088 36.609810544004, 137.306209406459 36.6098174021011, 137.306791022105 36.6098124223507, 137.308375322759 36.6110911528928)) ^^http://www.opengis.net/ont/geosparql#wktLiteral