メタデータ名 indicator-J2703
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((130.2625000 31.7125000, 130.2687500 31.7125000, 130.2687500 31.7166667, 130.2625000 31.7166667, 130.2625000 31.7125000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral