メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.263250920331 44.019842670766, 144.26147968702 44.0196781863405, 144.261583357907 44.0195454981838, 144.261910135567 44.0191410184986, 144.261715628125 44.0192846156282, 144.261762735847 44.0191620604937, 144.261786085269 44.0191149048903, 144.26207160303 44.0191441162347, 144.262341968017 44.0191689390647, 144.263364783331 44.019262904644, 144.263250920331 44.019842670766)) ^^http://www.opengis.net/ont/geosparql#wktLiteral