メタデータ名 indicator-J420512
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.0125000 42.7041667, 143.0187500 42.7041667, 143.0187500 42.7083333, 143.0125000 42.7083333, 143.0125000 42.7041667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral