メタデータ名 indexItems-2121
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.5937500 33.3791667, 131.6000000 33.3791667, 131.6000000 33.3833333, 131.5937500 33.3833333, 131.5937500 33.3791667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral