メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.341812835227 43.0947650768886, 141.341779661888 43.0948928125528, 141.341722870979 43.0950991257626, 141.341646097682 43.0954431266993, 141.341622723533 43.0955117913066, 141.341210405759 43.0954535724514, 141.341017975247 43.0954263990641, 141.340676665853 43.095378203232, 141.340092163501 43.0952956651213, 141.340082420433 43.0952990335426, 141.34023650783 43.0947375620466, 141.34025167292 43.0946985094456, 141.340336763551 43.0943570386835, 141.340344719877 43.0943252428585, 141.341208657273 43.0944385929444, 141.341874521956 43.0945325687318, 141.341812835227 43.0947650768886)) ^^http://www.opengis.net/ont/geosparql#wktLiteral