メタデータ名 C2230
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((130.6375000 32.6833333, 130.6437500 32.6833333, 130.6437500 32.6875000, 130.6375000 32.6875000, 130.6375000 32.6833333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral