メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.955773074028 43.5468657524994, 144.955235700169 43.5472964864364, 144.954709217133 43.5469600669297, 144.954505121495 43.5468280590764, 144.954319338325 43.5467077117088, 144.95427671978 43.546679995485, 144.954819171638 43.5462503762095, 144.954856309478 43.5462723156898, 144.955695560429 43.546814427973, 144.955773074028 43.5468657524994)) ^^http://www.opengis.net/ont/geosparql#wktLiteral