How many months after the Battle of Sasowy Róg was an agreement between Żółkiewski and Tomșa signed?
return the  Battle of Sasowy Róg ;return an agreement between Żółkiewski and  Tomșa was  signed ;return month of #1 ;return month of #2 ;return the  difference of #4 and  #3
['select', 'select', 'project', 'project', 'arithmetic']