Were there more Serbs or Vlachs in Skopje in 2002?
return Skopje ;return Serbs of #1 ;return Vlachs of #1 ;return #2 in  2002 ;return #3 in  2002 ;return number of  #4 ;return number of  #5 ;return which is more of #6 ,  #7
['select', 'project', 'project', 'filter', 'filter', 'aggregate', 'aggregate', 'comparison']