メタデータ名 nationality-korea
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.6187500 32.9958334, 131.6250000 32.9958334, 131.6250000 33.0000000, 131.6187500 33.0000000, 131.6187500 32.9958334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral