メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.358642996155 43.0654056598846, 141.358688957863 43.0654112222798, 141.358749186064 43.0654185135349, 141.358771593394 43.0654212204771, 141.358827800812 43.0654279887305, 141.358855568796 43.0654313692036, 141.359405580419 43.0654978211611, 141.35909843334 43.0667170578629, 141.358339261391 43.0666134556814, 141.358001993028 43.0665672206414, 141.357981314693 43.0665643865963, 141.357961594342 43.0665617022548, 141.357769744254 43.0665354486554, 141.357545633238 43.0665047236479, 141.357633372608 43.0661497511324, 141.35784246755 43.0653042617, 141.358642996155 43.0654056598846)) ^^http://www.opengis.net/ont/geosparql#wktLiteral