メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((129.968712325251 33.4473814626157, 129.968390552989 33.4474262523632, 129.968168422308 33.447351599764, 129.967975603242 33.4473563302611, 129.967922999765 33.4468805226187, 129.968538111575 33.4464453672523, 129.968762453452 33.4462974122949, 129.968801850256 33.4464903619148, 129.968852060378 33.4467494035238, 129.968898031299 33.4470746314936, 129.968939219237 33.4473660260468, 129.968712325251 33.4473814626157)) ^^http://www.opengis.net/ont/geosparql#wktLiteral