メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.644438993688 43.938682548662, 141.645325261338 43.9393323755368, 141.645309576663 43.939343635944, 141.644840191241 43.9396872946035, 141.644333722362 43.9400405013649, 141.643920817122 43.939742885077, 141.643384968939 43.9393628777605, 141.642315060129 43.9385631003017, 141.642880006791 43.9381722767592, 141.6433327302 43.9378499231491, 141.644193297154 43.9384934939656, 141.644438993688 43.938682548662)) ^^http://www.opengis.net/ont/geosparql#wktLiteral