メタデータ名 C1818
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((133.6500000 34.1916667, 133.6562500 34.1916667, 133.6562500 34.1958334, 133.6500000 34.1958334, 133.6500000 34.1916667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral