How many years were between the conflict between the First Republic of Armenia and the Turkish nationalists and the first time the Ottoman Empire lost to the Russian Empire?
return the  conflict between the     first Republic of Armenia and  the   Turkish nationalists ;return the  first time the     Ottoman Empire  lost to the   Russian Empire ;return year of #1 ;return year of #2 ;return difference of #4 and  #3
['select', 'select', 'project', 'project', 'arithmetic']