メタデータ名 C08218-19730501
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.0187500 35.9791667, 138.0250000 35.9791667, 138.0250000 35.9833333, 138.0187500 35.9833333, 138.0187500 35.9791667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral