メタデータ名 C21341-19890301
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((130.5375000 31.6500000, 130.5437500 31.6500000, 130.5437500 31.6541667, 130.5375000 31.6541667, 130.5375000 31.6500000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral