メタデータ名 G20473150783
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.4187500 36.7375000, 138.4250000 36.7375000, 138.4250000 36.7416667, 138.4187500 36.7416667, 138.4187500 36.7375000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral