メタデータ名 C23346-19730901
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.7437500 34.3958334, 135.7500000 34.3958334, 135.7500000 34.4000000, 135.7437500 34.4000000, 135.7437500 34.3958334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral