What event happened first, Sweden and Russian concluding a seven-years truce, or the start of the period of low intensity warfare?
return Sweden and  Russian concluding a seven-years truce ;return the  start of the period of  low intensity warfare ;return when  was  #1 ;return when  was  #2 ;return which is the  lowest of #3 ,  #4
['select', 'select', 'project', 'project', 'comparison']