メタデータ名 indicator-E630222
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.8437500 36.1416667, 139.8500000 36.1416667, 139.8500000 36.1458334, 139.8437500 36.1458334, 139.8437500 36.1416667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral