How many years after the city obtained their rights did the Battle of Nieuwpoort happen?
return city obtained their rights ;return Battle of Nieuwpoort ;return when  was  #1 ;return when  was  #2 ;return the  year of #3 ;return the  year of #4 ;return the  difference of #6 and  #5
['select', 'select', 'project', 'project', 'project', 'project', 'arithmetic']