メタデータ名 age-39
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.9312500 35.2125000, 136.9375000 35.2125000, 136.9375000 35.2166667, 136.9312500 35.2166667, 136.9312500 35.2125000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral