If there is a single brown and white cocker spaniel looking left.
return cocker spaniel ;return #1 that is brown and white ;return if  #2 is looking left ;return number of  #1 ;return if  #4 is equal to  one ;return if  both  #5 and #3 are true
['select', 'filter', 'boolean', 'aggregate', 'boolean', 'boolean']