メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.436615912226 43.0608879649678, 141.437136480398 43.0608697946589, 141.437201687293 43.0617062759896, 141.43726547639 43.0625196093786, 141.437324644763 43.0633123728386, 141.436800605487 43.0633376940473, 141.436769346306 43.0629956660969, 141.436148810645 43.0630070052178, 141.435543895149 43.0630193659636, 141.43547617326 43.0617364779488, 141.435386118837 43.0604816346115, 141.43538433914 43.060463968514, 141.435975332775 43.060458120571, 141.436565133972 43.0604481101445, 141.436578661449 43.0604478552802, 141.436615912226 43.0608879649678)) ^^http://www.opengis.net/ont/geosparql#wktLiteral