メタデータ名 C12409
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.9812500 39.2791667, 139.9875000 39.2791667, 139.9875000 39.2833333, 139.9812500 39.2833333, 139.9812500 39.2791667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral