メタデータ名 C1745
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.0937500 42.7291667, 142.1000000 42.7291667, 142.1000000 42.7333333, 142.0937500 42.7333333, 142.0937500 42.7291667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral