メタデータ名 G20503212883
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.0000000 42.7250000, 143.0062500 42.7250000, 143.0062500 42.7291667, 143.0000000 42.7291667, 143.0000000 42.7250000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral