If there are two dogs together in front of a visible sky in each image.
return dogs ;return #1 that are together ;return sky ;return #2 that are in  front of #3 ;return images ;return number of  #4 for each  #5 ;return #5 where  #6 is equal to  two ;return number of  #5 ;return number of  #7 ;return if  #8 is equal to  #9
['select', 'filter', 'select', 'filter', 'select', 'group', 'comparative', 'aggregate', 'aggregate', 'boolean']