メタデータ名
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.8312500 32.9125000, 131.8375000 32.9125000, 131.8375000 32.9166667, 131.8312500 32.9166667, 131.8312500 32.9125000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral