How many years passed between the besieging of Sinj an the attack by the Ottomans on Zadvarje?
return the  besieging of Sinj ;return the  attack by the   Ottomans on Zadvarje ;return year of #1 ;return year of #2 ;return difference of #3 and  #4
['select', 'select', 'project', 'project', 'arithmetic']