メタデータ名 C2052
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.5625000 40.4125000, 141.5687500 40.4125000, 141.5687500 40.4166667, 141.5625000 40.4166667, 141.5625000 40.4125000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral