Task: Question Generation
Input (English): #1 return the  Red Army entering Yerevan 
#2 return the  sovietization of Armenia 
#3 return when  was  #1 
#4 return when  was  #2 
#5 return difference of #3 and  #4 in  months
Output (English): How many months passed between the Red Army entering Yerevan and the sovietization of Armenia?