メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.301113829286 43.0685209250598, 141.301358737802 43.0687192435352, 141.301531920466 43.0688474825661, 141.301577429644 43.0688946985411, 141.301760969648 43.069066696702, 141.302018352923 43.0693086507721, 141.302057487282 43.0693461788895, 141.301341905912 43.0697421791248, 141.30102642459 43.069423504604, 141.299981193523 43.0700266928338, 141.299721773622 43.0698238205625, 141.298794077631 43.0703994903305, 141.298516019955 43.0701861214927, 141.298245796443 43.0699688085019, 141.298081871089 43.0698376876705, 141.299071289579 43.0693150017484, 141.29954565671 43.0690536617957, 141.299974547002 43.0688174024515, 141.299787450673 43.0686585941772, 141.300669179908 43.0681751575889, 141.301113829286 43.0685209250598)) ^^http://www.opengis.net/ont/geosparql#wktLiteral