If the left image includes an elephant with tusks, but the right image contains only a tuskless elephant.
return elephant  ;return tusks ;return #1 with #2 ;return if  #3 is in  the  left image  ;return the  right image  ;return elephants in  #5 ;return #6 that are tuskless ;return number of  #6 ;return number of  #7 ;return if  #9 is equal to  #8 ;return if  both  #4 and #10 are true
['select', 'select', 'filter', 'boolean', 'select', 'project', 'filter', 'aggregate', 'aggregate', 'boolean', 'boolean']