Task: Question Generation
Input (English): #1 return The Earl of Lennox arrival at  Edinburgh 
#2 return the  English arrival at  Edinburgh Castle 
#3 return when  was  #1 
#4 return when  was  #2 
#5 return difference of #3 and  #4 in  days
Output (English): How many days between The Earl of Lennox arrival at Edinburgh and the English arrival at Glasgow Castle?