メタデータ名 indicator-I230203
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.8375000 37.1458334, 140.8437500 37.1458334, 140.8437500 37.1500000, 140.8375000 37.1500000, 140.8375000 37.1458334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral