Task: Question Generation
Input (English): #1 return spheres 
#2 return colors of #1 
#3 return materials of #1 
#4 return #1 where  #2 are the  same 
#5 return #1 where  #3 are the  same 
#6 return #1 in  both  #4 and #5 
#7 return number of #6
Output (English): How many spheres are the same color and material?