If both dogs have their mouths open, and at least one dog is in a sitting position.
return dogs ;return mouth of #1 ;return #1 where  #2 is open ;return number of  #3 ;return if  #4 is equal to  two ;return #1 that are in  a  sitting position ;return number of  #6 ;return if  #7 is at least one ;return if  both  #5 and #8 are true
['select', 'project', 'comparative', 'aggregate', 'boolean', 'filter', 'aggregate', 'boolean', 'boolean']