メタデータ名 G20473150861
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.2125000 42.8500000, 143.2187500 42.8500000, 143.2187500 42.8541667, 143.2125000 42.8541667, 143.2125000 42.8500000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral