メタデータ名 G20554005874
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.0312500 38.7875000, 141.0375000 38.7875000, 141.0375000 38.7916667, 141.0312500 38.7916667, 141.0312500 38.7875000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral