If the right dish is entirely layered, the left dish has a green vegetable.
return dishes ;return #1 that is on the  right ;return if  #2 is entirely layered ;return #1 that is on the  left ;return vegetable in  #4 ;return if  #5 is green ;return if  both  #3 and #6 are true
['select', 'filter', 'boolean', 'filter', 'project', 'boolean', 'boolean']