メタデータ名
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.3937500 43.6375000, 144.4000000 43.6375000, 144.4000000 43.6416667, 144.3937500 43.6416667, 144.3937500 43.6375000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral