メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.428310809272 40.4908709595158, 141.42802234544 40.4926920634969, 141.426950106486 40.4925462322832, 141.426950389416 40.492087932048, 141.426461948659 40.4919841962054, 141.426030767426 40.4919565034845, 141.42603544951 40.4917456065628, 141.426195636621 40.491156986254, 141.42643218629 40.4913218222014, 141.426382479512 40.4911195064975, 141.426227993307 40.4907975525994, 141.426104000217 40.4906468764643, 141.426443050269 40.4896810766587, 141.426678529624 40.4887544716616, 141.426775871631 40.488251447923, 141.426794416651 40.4873198381843, 141.426946927541 40.4864692607534, 141.426764062006 40.48643389294, 141.426918495939 40.4862550519447, 141.426952587214 40.4859310699896, 141.428198255988 40.4861099930114, 141.428151354742 40.486620388756, 141.428062154357 40.4872923805927, 141.427993809234 40.4879627517702, 141.427997822563 40.4886298645503, 141.428029550653 40.4894189489393, 141.42805600456 40.489825781473, 141.428144042345 40.4903078685228, 141.428310809272 40.4908709595158)) ^^http://www.opengis.net/ont/geosparql#wktLiteral