メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.33652836903 43.10355444221, 141.335662663235 43.1039256690527, 141.335133142771 43.103325895532, 141.334863436729 43.1030168253199, 141.335455517133 43.1027730987742, 141.336666673343 43.1023023055303, 141.336837817245 43.1025338571633, 141.337122732424 43.1028211018054, 141.33725010555 43.1029755750518, 141.33734672229 43.1031846578542, 141.337090560157 43.1033068106116, 141.336729191751 43.1034683488255, 141.33652836903 43.10355444221)) ^^http://www.opengis.net/ont/geosparql#wktLiteral