メタデータ名 G20503660982
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.8125000 42.2458334, 139.8187500 42.2458334, 139.8187500 42.2500000, 139.8125000 42.2500000, 139.8125000 42.2458334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral