メタデータ名 indicator-C5711
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.3937500 34.5250000, 135.4000000 34.5250000, 135.4000000 34.5291667, 135.3937500 34.5291667, 135.3937500 34.5250000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral