Task: Question Generation
Input (English): #1 return one image  
#2 return buses in  #1 
#3 return #2 that are empty 
#4 return #3 that are parked 
#5 return front of #4 
#6 return #4 where  #5 is completely flat 
#7 return number of  #6 
#8 return if  #7 is at least one 
#9 return the  other image  
#10 return people in  #9 
#11 return bus  in  #9 
#12 return #11 that has slope-front 
#13 return traffic lights in  #9 
#14 return #13 that are glowing yellow 
#15 return #12 near #14 
#16 return if  #10 are standing next to  #15 
#17 return if  both  #8 and #16 are true
Output (English): If one image contains at least one empty parked bus with a completely flat front, and the other image shows people standing next to a slope-front bus near glowing yellow traffic lights.