メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.291629413059 43.1194567533273, 141.292511830638 43.1203208151168, 141.290884000689 43.1212039665418, 141.28995379173 43.1203394914542, 141.288996468819 43.1194547370225, 141.289200319695 43.119323665173, 141.290655027454 43.1185693434793, 141.290723937591 43.118539819468, 141.291629413059 43.1194567533273)) ^^http://www.opengis.net/ont/geosparql#wktLiteral