メタデータ名 indicator-J252507
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.8187500 37.2833333, 140.8250000 37.2833333, 140.8250000 37.2875000, 140.8187500 37.2875000, 140.8187500 37.2833333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral