メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((132.5062500 34.3500000, 132.5125000 34.3500000, 132.5125000 34.3541667, 132.5062500 34.3541667, 132.5062500 34.3500000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral