メタデータ名 indicator-E910311
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.4437500 43.8375000, 144.4500000 43.8375000, 144.4500000 43.8416667, 144.4437500 43.8416667, 144.4437500 43.8375000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral