Which group from the census in Skopje is smaller: Macedonians or Bosniaks?
return groups from  the  Skopje census ;return #1 that is Macedonians ;return #1 that is Bosniaks ;return size of #2 ;return size of #3 ;return which is lowest of #4 ,  #5
['select', 'filter', 'filter', 'project', 'project', 'comparison']