anchor.diff:      ClientsFromMarathon = clients_from_marathon(),
       ServersFromMarathon = servers_from_marathon(),
       Nodes = sets:union(ClientsFromMarathon, ServersFromMarathon),
  -    [{ServerName, _, _}|_] = sets:to_list(ServersFromMarathon),
   
       %% Build the graph.
       Graph = digraph:new(),
  
positive.code:             lager:info("Graph is connected!");
          false ->
              lager:info("SymmetricViews ~p", [SymmetricViews]),
              lager:info("Visited ~p from ~p: ~p", [length(VisitedNames), ServerName, VisitedNames]),
              lager:info("Graph is not connected!")
      end,
  
  
negative.code:                 {true, Visited1},
                  ordsets:subtract(Out, Visited1)
              ),
              lager:info("SymmetricViews ~p, root ~p", [SymmetricViews, Root]),
              lager:info("VisitedNodes ~p, root ~p", [VisitedNodes, Root]),
              {SymmetricViews, ordsets:union(VisitedNodes, Out)};
          false ->
              {false, ordsets:new()}
  