メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.307295358443 43.0637088473913, 141.30675949758 43.0639943271622, 141.306583198624 43.0640882393626, 141.306235237574 43.0642298961087, 141.305762320153 43.0644322697596, 141.305461667872 43.0645598265135, 141.304887043926 43.0648513077097, 141.304718136948 43.0647135442824, 141.304309562955 43.0643612669817, 141.304033148177 43.0641226772423, 141.304593044792 43.0638219360833, 141.305225159674 43.0634963295788, 141.305747950242 43.0632689116984, 141.30627266601 43.062996987393, 141.307083496878 43.0625811353147, 141.307643137259 43.0629401328477, 141.308009046463 43.0633230630089, 141.307295358443 43.0637088473913)) ^^http://www.opengis.net/ont/geosparql#wktLiteral