"archaeological_site"=>"megalith","historic:civilization"=>"prehistoric","inscription"=>"Former location of hunebed D52a"
"archaeological_site"=>"tumulus","historic:civilization"=>"prehistoric"
"archaeological_site"=>"tumulus","historic:civilization"=>"prehistoric"
"archaeological_site"=>"megalith","megalith_type"=>"dolmen","ref"=>"D52","wikidata"=>"Q2440119"
"access"=>"yes","archaeological_site"=>"tumulus","historic:civilization"=>"neolithic"