メタデータ名 G20503010991
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.3125000 37.4875000, 137.3187500 37.4875000, 137.3187500 37.4916667, 137.3125000 37.4916667, 137.3125000 37.4875000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral