メタデータ名
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.0500000 39.8666667, 140.0562500 39.8666667, 140.0562500 39.8708334, 140.0500000 39.8708334, 140.0500000 39.8666667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral