メタデータ名 C06209-19890427
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.3062500 35.3791667, 135.3125000 35.3791667, 135.3125000 35.3833333, 135.3062500 35.3833333, 135.3062500 35.3791667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral