メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.397137889499 43.8075717988241, 142.397971721046 43.8081667365824, 142.398236741827 43.8083667571504, 142.398099713975 43.8084683223563, 142.397946385641 43.8085797532326, 142.397840569983 43.8086586341856, 142.39765873476 43.8087868386122, 142.397449784409 43.808936736667, 142.397392818542 43.8089840668534, 142.397124149272 43.8091734049694, 142.397083458377 43.8092108693626, 142.396869121382 43.8093824332167, 142.39667638979 43.8094988363054, 142.396580088038 43.8095885325799, 142.3963005597 43.8097818211688, 142.396192002887 43.8098587529587, 142.395765715346 43.8101882235934, 142.395215807802 43.8097913496627, 142.394215558774 43.8090660321588, 142.39515271662 43.8083834890808, 142.395900272783 43.8078263852198, 142.39669671159 43.8072416239486, 142.397137889499 43.8075717988241)) ^^http://www.opengis.net/ont/geosparql#wktLiteral