question: Is the blue metallic ball larger than the copper cube?
#1 return balls 
#2 return #1 that  is  blue 
#3 return #2 that  is  metallic 
#4 return size of #3 
#5 return cubes 
#6 return #5 that  is  copper 
#7 return size of #6 
#8 return is  #4 larger than  #7