メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.896261145196 35.2382479804829, 136.896225671662 35.2385879085861, 136.896145506161 35.239354435181, 136.896082008275 35.2393542926387, 136.895184690588 35.2393648099955, 136.89518640781 35.2385031764081, 136.894680712946 35.2385059098024, 136.89352228016 35.2385254734858, 136.893520654504 35.2382891264302, 136.893517145528 35.2377782634773, 136.893510484157 35.2368099883874, 136.896426450557 35.2367780386145, 136.896363152306 35.2372700195322, 136.896261986462 35.238239883944, 136.896261145196 35.2382479804829)) ^^http://www.opengis.net/ont/geosparql#wktLiteral