メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.365671182398 33.5686179421566, 131.365339217826 33.5687799908829, 131.365204540546 33.5688210015367, 131.365067990278 33.5688470081582, 131.364936734448 33.5688519032789, 131.363970119131 33.5688178708025, 131.363984243838 33.5685446477755, 131.364036071123 33.5680017950068, 131.364511290512 33.5680378388998, 131.364709642285 33.5680302111046, 131.364847930565 33.5680169485789, 131.364976379307 33.5679955068773, 131.365107575695 33.5679577139515, 131.366271510789 33.5673051003134, 131.366303712578 33.567378266808, 131.366790744475 33.5680275889978, 131.365671182398 33.5686179421566)) ^^http://www.opengis.net/ont/geosparql#wktLiteral