If the left image shows exactly one parrot, and it is perched on a wooden limb.
return left image ;return parrot in  #1 ;return number of  #2 ;return if  #3 is equal to  one ;return wooden limb in  #1 ;return if  #2 is perched on #5 ;return if  both  #4 and #6 are true
['select', 'project', 'aggregate', 'boolean', 'project', 'boolean', 'boolean']