メタデータ名 C12228-19880601
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.9812500 36.6250000, 136.9875000 36.6250000, 136.9875000 36.6291667, 136.9812500 36.6291667, 136.9812500 36.6250000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral