メタデータ名 si001020015
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.0062500 39.3000000, 141.0125000 39.3000000, 141.0125000 39.3041667, 141.0062500 39.3041667, 141.0062500 39.3000000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral