question: If the green cube was stacked on top of the red cube, would they be taller than the red sphere?
#1 return the  green cube 
#2 return the  red  cube 
#3 return the  red  sphere 
#4 return height of #1 
#5 return height of #2 
#6 return height of #3 
#7 return sum of #4 and  #5 
#8 return if #7 is higher than #6