メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.339671962876 43.0584631491746, 141.339474234423 43.059199120602, 141.339322594488 43.0597953622261, 141.33923037845 43.0597854139829, 141.339190905497 43.0598990337906, 141.338532588344 43.0598259897057, 141.338568070429 43.0596969374155, 141.337811602373 43.0595939199643, 141.337950735293 43.0589883680258, 141.33812349137 43.0582429875924, 141.338166449002 43.0580883937187, 141.33820667375 43.0579434841748, 141.338280940955 43.0576759807373, 141.33982332205 43.0578854013619, 141.339671962876 43.0584631491746)) ^^http://www.opengis.net/ont/geosparql#wktLiteral