メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.753299165259 35.3659617812284, 136.753257372314 35.3666844110929, 136.753173749397 35.3678313098693, 136.753106408023 35.3678784761469, 136.752932562432 35.3678804309374, 136.751124937832 35.3679495140528, 136.750132623316 35.3679950506654, 136.750082988115 35.3671519026239, 136.749997858723 35.3667770590255, 136.749903966609 35.3661576216271, 136.751201551917 35.3658143341634, 136.751418345623 35.3657683050475, 136.753303150308 35.3655321041425, 136.753364922093 35.3656249812102, 136.753299165259 35.3659617812284)) ^^http://www.opengis.net/ont/geosparql#wktLiteral