Which group of industries in Fukushima is smaller: dealing with food or metals?
return groups of industries in  Fukushima ;return #1 that is dealing with food ;return #1 that is dealing with metals ;return size of #2 ;return size of #3 ;return which is lowest of #4 ,  #5
['select', 'filter', 'filter', 'project', 'project', 'comparison']