メタデータ名
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.0375000 39.7166667, 141.0437500 39.7166667, 141.0437500 39.7208334, 141.0375000 39.7208334, 141.0375000 39.7166667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral