メタデータ名 G20644301963
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.0000000 42.6458334, 143.0062500 42.6458334, 143.0062500 42.6500000, 143.0000000 42.6500000, 143.0000000 42.6458334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral