メタデータ名 C18322-20060213
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.9062500 42.5875000, 141.9125000 42.5875000, 141.9125000 42.5916667, 141.9062500 42.5916667, 141.9062500 42.5875000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral