メタデータ名 indicator-F2703
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.2375000 37.3958334, 137.2437500 37.3958334, 137.2437500 37.4000000, 137.2375000 37.4000000, 137.2375000 37.3958334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral