Task: Question Generation
Input (English): #1 return balls 
#2 return #1 to  the  right 
#3 return #2 that  are large 
#4 return #2 that  are metallica 
#5 return #2 in both #3 and #4 
#6 return the  color of #5
Output (English): What color is the large metallica ball to to the right?