メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.366653049159 43.066486133372, 141.367186073943 43.0665611380466, 141.367287168212 43.0665751392511, 141.367270590443 43.0666809987664, 141.367215940395 43.066672418597, 141.367091717027 43.0671539223656, 141.367116323323 43.0671571360037, 141.366935109108 43.0677930656348, 141.366340861072 43.0677055602962, 141.365249774455 43.0675410705977, 141.365405662169 43.0669399015209, 141.365466083432 43.0666003950543, 141.365640053901 43.0666161572617, 141.365705280195 43.0663559485408, 141.366653049159 43.066486133372)) ^^http://www.opengis.net/ont/geosparql#wktLiteral