メタデータ名 C28680-20060211
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.0625000 38.4666667, 141.0687500 38.4666667, 141.0687500 38.4708334, 141.0625000 38.4708334, 141.0625000 38.4666667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral