メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.759610362311 43.1767574463205, 141.75999885238 43.1769582162546, 141.760162520303 43.1770341007567, 141.760377171151 43.1771514864621, 141.760883236795 43.1774128176073, 141.759994565961 43.1783322067116, 141.759093872047 43.1792734805607, 141.758658696072 43.1790509192708, 141.75860868714 43.179019549203, 141.758215787955 43.1788339509251, 141.757819087954 43.1786313155728, 141.757407038247 43.1784257985492, 141.758294967739 43.1774607066138, 141.759165691003 43.1765226754024, 141.759610362311 43.1767574463205)) ^^http://www.opengis.net/ont/geosparql#wktLiteral