メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.279242840755 42.4862563644976, 143.280169424403 42.487615102262, 143.278218099618 42.4883893124884, 143.27754714156 42.4874754691603, 143.276975097172 42.4866644106373, 143.276941179788 42.4866182928853, 143.277678214323 42.4860194484732, 143.277723526247 42.4859778249172, 143.278518781055 42.4852213222451, 143.279242840755 42.4862563644976)) ^^http://www.opengis.net/ont/geosparql#wktLiteral