メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.389901645239 43.0769024506941, 141.39001156765 43.0770480158117, 141.390199559451 43.0772912920968, 141.390459583729 43.0776245676341, 141.389702051088 43.0779264207033, 141.388842130973 43.078263294385, 141.388578081311 43.0779238663054, 141.388274492332 43.0775036821788, 141.3879208105 43.0770218629983, 141.387470984883 43.0764250329636, 141.387719053609 43.076337516209, 141.38830482289 43.076119128771, 141.388330083555 43.0761101756409, 141.388800887113 43.0759420486393, 141.389090798974 43.0758394411844, 141.389593574732 43.0765060082263, 141.389901645239 43.0769024506941)) ^^http://www.opengis.net/ont/geosparql#wktLiteral