メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.830825457633 35.5182366280546, 137.830672595579 35.5183169373518, 137.830603384929 35.5182448654511, 137.830413180919 35.5179991696729, 137.830236856529 35.5177314031962, 137.830230549052 35.5177181647919, 137.830211816538 35.5177284119901, 137.830091109448 35.517562007698, 137.829404751393 35.517880464058, 137.829144765316 35.5175182207467, 137.829142934354 35.5175156749851, 137.828865926184 35.5171138661798, 137.829302862963 35.5168969067063, 137.829705652244 35.5167052129553, 137.829775090332 35.5168015109266, 137.830015676739 35.5171351255748, 137.830543693922 35.5169026830256, 137.830815362803 35.5172640033674, 137.83043975861 35.517464795368, 137.830955171115 35.5181589012699, 137.830825457633 35.5182366280546)) ^^http://www.opengis.net/ont/geosparql#wktLiteral