メタデータ名 nationality-indonesia
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.7187500 39.7000000, 141.7250000 39.7000000, 141.7250000 39.7041667, 141.7187500 39.7041667, 141.7187500 39.7000000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral