put "relation/:id" => "relations#update", :id => /\d+/
delete "relation/:id" => "relations#delete", :id => /\d+/
get "relations" => "relations#index"
put "relation/:id" => "relations#update", :id => /\d+/
delete "relation/:id" => "relations#delete", :id => /\d+/
get "relations" => "relations#index"