question: What is the shape of the item that isn't made from the same material as the other items?
#1 return items 
#2 return materials of #1 
#3 return number of #1 for each #2 
#4 return #2 where  #3 is  one 
#5 return #1 where  #2 is  #4 
#6 return the   shape of #5