メタデータ名 indicator-C3114
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.3062500 40.2791667, 141.3125000 40.2791667, 141.3125000 40.2833333, 141.3062500 40.2833333, 141.3062500 40.2791667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral