メタデータ名 C15303-19740901
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.8312500 35.2916667, 136.8375000 35.2916667, 136.8375000 35.2958334, 136.8312500 35.2958334, 136.8312500 35.2916667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral