If there is one mammal facing to the side, and one mammal facing the camera.
return mammal  ;return camera ;return #1 facing to  the  side ;return #1 facing #2 ;return the  number of  #3 ;return the  number of  #4 ;return if  #5 is equal to  one ;return if  #6 is equal to  one ;return if  both  #7 and #8 is true
['select', 'select', 'filter', 'filter', 'aggregate', 'aggregate', 'boolean', 'boolean', 'boolean']