メタデータ名 C12344-19730501
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.7687500 35.5000000, 136.7750000 35.5000000, 136.7750000 35.5041667, 136.7687500 35.5041667, 136.7687500 35.5000000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral