メタデータ名 nationality-unitedKingdom
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.3750000 40.7708334, 141.3812500 40.7708334, 141.3812500 40.7750000, 141.3750000 40.7750000, 141.3750000 40.7708334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral