Task: Question Generation
Input (English): #1 return implementation of Home Rule 
#2 return Sinn Féin members meet at the  Mansion House 
#3 return when  was  #1 
#4 return when  was  #2 
#5 return difference of #4 and  #3 in  years
Output (English): How many years after the implementation of Home Rule did Sinn Féin members meet at the Mansion House?