Which does the municipality have more households of, formal structures or informal structures?
return the  municipality ;return households of #1 ;return #2 that are formal structures ;return #2 that are informal structures ;return number of  #3 ;return number of  #4 ;return which is highest of #5 ,  #6
['select', 'project', 'filter', 'filter', 'aggregate', 'aggregate', 'comparison']