メタデータ名 C4141
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.9687500 43.1000000, 143.9750000 43.1000000, 143.9750000 43.1041667, 143.9687500 43.1041667, 143.9687500 43.1000000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral