メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.364680882695 33.5667459273092, 131.364655679568 33.5667958050341, 131.364393684086 33.5671360450478, 131.364266993248 33.5673651834379, 131.364202837334 33.5675068586035, 131.36408816857 33.5678135222456, 131.364036071123 33.5680017950068, 131.362930540935 33.5679290319284, 131.363003394233 33.5671207561751, 131.363050306106 33.5666582960393, 131.364680882695 33.5667459273092)) ^^http://www.opengis.net/ont/geosparql#wktLiteral