メタデータ名 indicator-I6100
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.3375000 38.9000000, 141.3437500 38.9000000, 141.3437500 38.9041667, 141.3375000 38.9041667, 141.3375000 38.9000000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral