メタデータ名 G20493144224
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.7875000 38.5208334, 139.7937500 38.5208334, 139.7937500 38.5250000, 139.7875000 38.5250000, 139.7875000 38.5208334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral