Task: Question Generation
Input (English): #1 return objects 
#2 return #1 that  is  farthest back 
#3 return tiny object  
#4 return material of #2 
#5 return material of #3 
#6 return is  #4 the   same as #5
Output (English): is the object farthest back made of the same material as the remaining tiny object?