Task: Question Generation
Input (English): #1 return travel 
#2 return airplanes of #1 
#3 return #2 from  boston 
#4 return #3 to   atlanta 
#5 return #4 that  are after 5pm 
#6 return what kind of #5
Output (English): i'm traveling from boston to atlanta and i'd like to go sometime after 5pm but i want to know what kind of airplane it's on