Task: Question Decomposition
Input (English): question: What is the shape of the small item that is made of the same material as the purple sphere?
Output (English): #1 return sphere 
#2 return #1 that is  purple 
#3 return items 
#4 return #3 that are small 
#5 return materials of #4 
#6 return material of #2 
#7 return #4 where #5 are the   same as #6 
#8 return shape of #7