メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.8703335835 37.4619595607275, 138.870558553417 37.4619074542445, 138.870984433895 37.4618131694556, 138.871554906774 37.4616905447666, 138.871575107068 37.4616862558621, 138.87198091185 37.4616014757684, 138.872242053868 37.4615398286633, 138.87235236244 37.4618761383846, 138.872476673426 37.462204378271, 138.872603120479 37.4625535893647, 138.872680936648 37.4628290337591, 138.872735065144 37.4629950078646, 138.872758529002 37.4630597034187, 138.872793881048 37.4635587323938, 138.872664813679 37.4635688535388, 138.872308503813 37.4635504056133, 138.87209369255 37.4635446046762, 138.871208473311 37.463521505139, 138.870996516191 37.4635188004064, 138.870233816283 37.4634985555745, 138.870146863571 37.4632299005122, 138.870102013841 37.4631082499073, 138.870070683498 37.4630234467968, 138.869973563532 37.4627607371647, 138.869855314056 37.4624403682376, 138.869747095429 37.4621120807624, 138.86973087878 37.4620832672545, 138.8703335835 37.4619595607275)) ^^http://www.opengis.net/ont/geosparql#wktLiteral