メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.457738182422 43.0411749136658, 144.456917578373 43.0413434355768, 144.457166426035 43.0407328358048, 144.457375611993 43.0400591447154, 144.457374751265 43.0400244898104, 144.457367414026 43.0397345324639, 144.457342059764 43.0394127143025, 144.457278054976 43.0391572558314, 144.457209489156 43.0389671496742, 144.457114210989 43.0387165148447, 144.457550077808 43.0386104169804, 144.457603294838 43.0392170846424, 144.457640558243 43.0397371356905, 144.457666589348 43.0400990988447, 144.457709837998 43.0407271266275, 144.457738182422 43.0411749136658)) ^^http://www.opengis.net/ont/geosparql#wktLiteral