Task: Question Generation
Input (English): #1 return countries 
#2 return invoices of #1 
#3 return number of  #2 for each #1 
#4 return #1 where #3 is highest 5 
#5 return number of  #2 for each #4 
#6 return #4 ,  #5
Output (English): What are the top 5 countries by number of invoices and how many do they have?