メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.007779309747 43.5697052534939, 145.007016294531 43.5692107667805, 145.007076660908 43.5691561493257, 145.007894418917 43.5685160926274, 145.008062811941 43.5686202830724, 145.008700521021 43.5690180404201, 145.008672072584 43.5690430926739, 145.008159137143 43.5694372409283, 145.007779309747 43.5697052534939)) ^^http://www.opengis.net/ont/geosparql#wktLiteral