メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.224682524809 35.2364461062454, 136.224280406692 35.2366512790496, 136.223731547632 35.2369510832028, 136.223587257941 35.2367809916256, 136.22338838011 35.2365192371455, 136.223157475717 35.2362313408121, 136.222999730404 35.2360138056698, 136.222893553539 35.2358674462714, 136.223897188966 35.2354672378485, 136.22426557699 35.2352959301922, 136.225024496868 35.2349946101048, 136.225697367323 35.2359252264186, 136.224682524809 35.2364461062454)) ^^http://www.opengis.net/ont/geosparql#wktLiteral