Is the object behind the green cube the same size as the gray ball?
return the   gray ball ;return the   green cube ;return objects ;return #3 that  are behind #2 ;return the   size of #1 ;return the   size of #4 ;return if  #5 and #6 are the   same
['select', 'select', 'select', 'filter', 'project', 'project', 'boolean']