メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.567389582013 42.9727098932725, 141.568473268925 42.9728035564032, 141.568308300433 42.9731240610896, 141.568096796387 42.973564626281, 141.567740960258 42.9742168041192, 141.566371932765 42.9741223461912, 141.565150147371 42.9740212261614, 141.564605692343 42.9739780919349, 141.563885779672 42.9739168843917, 141.564061984374 42.9734449583824, 141.564217355856 42.9730636359454, 141.564487054595 42.9724732679343, 141.565078997176 42.9725168269839, 141.565795026007 42.9725771601961, 141.566038828694 42.9725984492927, 141.566621971464 42.9726455344242, 141.567389582013 42.9727098932725)) ^^http://www.opengis.net/ont/geosparql#wktLiteral