メタデータ名 G20473033223
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.7125000 44.3750000, 141.7187500 44.3750000, 141.7187500 44.3791667, 141.7125000 44.3791667, 141.7125000 44.3750000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral