メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((129.5375000 33.3500000, 129.5437500 33.3500000, 129.5437500 33.3541667, 129.5375000 33.3541667, 129.5375000 33.3500000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral