メタデータ名 C18207-19790301
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.7062500 38.2958334, 140.7125000 38.2958334, 140.7125000 38.3000000, 140.7062500 38.3000000, 140.7062500 38.2958334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral