メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.106185301295 38.9408779859408, 141.105136333934 38.9412396475615, 141.103671305307 38.9417041719268, 141.103193210364 38.941831466761, 141.102926201788 38.9418951426745, 141.102780334198 38.9419465046042, 141.101370702617 38.9422749680588, 141.101072563668 38.9423289275059, 141.100836363939 38.9423246115118, 141.100146548235 38.9423456798217, 141.099729005094 38.9423746248259, 141.098916226137 38.9424309625264, 141.098375651864 38.9424710370966, 141.098074273408 38.94082868393, 141.097867330436 38.9395064176706, 141.100551096473 38.9392171140882, 141.101650588181 38.9390986132394, 141.105028571667 38.9387491351182, 141.10583296178 38.9386658995864, 141.106185301295 38.9408779859408)) ^^http://www.opengis.net/ont/geosparql#wktLiteral