How many from the census were in Ungheni and Orhei?
return the  census ;return those in  Ungheni of #1 ;return those in  Orhei of #1 ;return number of  #2 ;return number of  #3 ;return the  sum of #4 and  #5
['select', 'project', 'project', 'aggregate', 'aggregate', 'arithmetic']