メタデータ名 G20503047951
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.1500000 36.3166667, 139.1562500 36.3166667, 139.1562500 36.3208334, 139.1500000 36.3208334, 139.1500000 36.3166667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral