if (result.first.empty() || result.second.empty()) {
string const sys_path = external_path(addName(lyx::support::package().system_support().absFileName(),dataDirectory())) ;
result = getThesaurus(sys_path, lang);
if (result.first.empty() || result.second.empty()) {
string const sys_path = external_path(addName(lyx::support::package().system_support().absFileName(),dataDirectory())) ;
result = getThesaurus(sys_path, lang);