If there are 2 pandas in the left image and only 1 panda in the right image.
return left image  ;return pandas of #1 ;return right image  ;return pandas of #3 ;return the  number of  #2 ;return the  number of  #4 ;return if  #5 is equal to  two ;return if  #6 is equal to  one ;return if  both  #7 and #8 is true
['select', 'project', 'select', 'project', 'aggregate', 'aggregate', 'boolean', 'boolean', 'boolean']