メタデータ名 C28421-19700401
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.9437500 35.4958334, 136.9500000 35.4958334, 136.9500000 35.5000000, 136.9437500 35.5000000, 136.9437500 35.4958334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral