メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.366271510789 33.5673051003134, 131.365107575695 33.5679577139515, 131.364976379307 33.5679955068773, 131.364847930565 33.5680169485789, 131.364709642285 33.5680302111046, 131.364511290512 33.5680378388998, 131.364036071123 33.5680017950068, 131.36408816857 33.5678135222456, 131.364202837334 33.5675068586035, 131.364266993248 33.5673651834379, 131.364393684086 33.5671360450478, 131.364655679568 33.5667958050341, 131.364680882695 33.5667459273092, 131.364690813657 33.5667464607133, 131.366152232706 33.5668187570845, 131.366271510789 33.5673051003134)) ^^http://www.opengis.net/ont/geosparql#wktLiteral