メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.898535279273 35.2382093091467, 136.898538924073 35.2385721414337, 136.898538980519 35.2388459498879, 136.898553786474 35.2394214866734, 136.898431488313 35.2394212162476, 136.896124009927 35.2394546707357, 136.896145506161 35.239354435181, 136.896225671662 35.2385879085861, 136.896261145196 35.2382479804829, 136.896261986462 35.238239883944, 136.896363152306 35.2372700195322, 136.898525683988 35.2372539161856, 136.898535279273 35.2382093091467)) ^^http://www.opengis.net/ont/geosparql#wktLiteral