メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.189953700799 43.9122162417412, 144.190278167948 43.9121077416639, 144.190619239665 43.9119835108616, 144.190933273159 43.9117994524176, 144.192076083801 43.9104086077823, 144.192617127802 43.9113251405479, 144.193201510562 43.9123236524625, 144.193948936425 43.9136388296416, 144.194278467975 43.9141639683861, 144.190613747813 43.915340487469, 144.189957589076 43.9142402568423, 144.189784759891 43.9139505275735, 144.18954732732 43.9135524508449, 144.189539708838 43.9135395360234, 144.189361737491 43.9132410988186, 144.188950662937 43.9125518604389, 144.189953700799 43.9122162417412)) ^^http://www.opengis.net/ont/geosparql#wktLiteral