How many battles did not lose any ship with tonnage '225'?
return battles ;return ships lose of #1 ;return tonnages of #2 ;return #2 where #3 is equal to '225 ;return number of  #4 for each #1 ;return #1 where #5 is equal to zero ;return number of  #6
['select', 'project', 'project', 'comparative', 'group', 'comparative', 'aggregate']