If the stingray on the left is viewed from underneath, showing its underside.
return stingray ;return #1 on the  left ;return underside of  #2 ;return if  #3 is  showing ;return if  #2 is  viewed from  underneath ;return if  both  #4 and #5 are  true
['select', 'filter', 'project', 'boolean', 'boolean', 'boolean']