メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.343967546634 43.0505464956438, 141.343958995425 43.0506258301229, 141.34394402247 43.0507504065611, 141.34392434103 43.0509148218932, 141.343880357396 43.0512838459051, 141.34386252232 43.0514530587089, 141.342753425187 43.0513960903588, 141.34277290105 43.0512134576875, 141.34231149957 43.0511830721083, 141.342318998069 43.0511493022169, 141.34237551391 43.0508284843808, 141.342381986074 43.0507733269916, 141.342394724841 43.0506768658791, 141.342420632894 43.0504807107653, 141.342433407978 43.0503881874967, 141.3424641762 43.0501291256693, 141.342484127948 43.0500051524931, 141.343012452336 43.0500357159586, 141.342985323617 43.0502497957763, 141.343469753561 43.0502787442674, 141.343485263732 43.0501762563781, 141.343615836872 43.0501854489586, 141.343605738999 43.0502850963492, 141.343996511041 43.0503052128064, 141.34398738896 43.050377720893, 141.343967546634 43.0505464956438)) ^^http://www.opengis.net/ont/geosparql#wktLiteral