メタデータ名 G20493046063
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.4937500 38.4000000, 141.5000000 38.4000000, 141.5000000 38.4041667, 141.4937500 38.4041667, 141.4937500 38.4000000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral