メタデータ名 indicator-E620120
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.7437500 36.2500000, 139.7500000 36.2500000, 139.7500000 36.2541667, 139.7437500 36.2541667, 139.7437500 36.2500000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral