メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.440075244194 40.613296310258, 141.44134860037 40.6137637305938, 141.441420554593 40.6138643233549, 141.4412745474 40.6141596514854, 141.440851334743 40.6150341572433, 141.440730344937 40.615277491974, 141.439078589021 40.6145985011667, 141.438777445778 40.6144649959386, 141.437744010761 40.6140068341214, 141.436577217401 40.6134158946605, 141.436689649829 40.6132527586946, 141.437964143888 40.613863814408, 141.438641893385 40.6127787169498, 141.439263921856 40.6129984732344, 141.440075244194 40.613296310258)) ^^http://www.opengis.net/ont/geosparql#wktLiteral