メタデータ名 C15321-19700401
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.9812500 34.4416667, 135.9875000 34.4416667, 135.9875000 34.4458334, 135.9812500 34.4458334, 135.9812500 34.4416667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral