メタデータ名
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.1937500 27.0916667, 142.2000000 27.0916667, 142.2000000 27.0958334, 142.1937500 27.0958334, 142.1937500 27.0916667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral