メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.37040674731 43.0552870398099, 141.36996223105 43.055555165463, 141.369089726946 43.056081483344, 141.368725159563 43.0558152916027, 141.368711249051 43.0558053828732, 141.368353003464 43.0555501645922, 141.368516250323 43.0554438977575, 141.368751173017 43.0552909713871, 141.369212342824 43.0550053954479, 141.369465311323 43.0548397468247, 141.36981482835 43.0546288433832, 141.370515231004 43.0552457458429, 141.37050769869 43.0552493446602, 141.37040674731 43.0552870398099)) ^^http://www.opengis.net/ont/geosparql#wktLiteral