メタデータ名 indicator-J120102
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.713767588293 44.369817749094, 141.712834345654 44.3704657239057, 141.711750002905 44.3696066557181, 141.71276335748 44.3689500695892, 141.713767588293 44.369817749094)) ^^http://www.opengis.net/ont/geosparql#wktLiteral