メタデータ名 G20492976491
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.0500000 34.9125000, 137.0562500 34.9125000, 137.0562500 34.9166667, 137.0500000 34.9166667, 137.0500000 34.9125000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral