If in at least one image there is a sea lion swimming alone with no other mammals present.
return sea lion ;return #1 swimming alone ;return images of  #2 ;return mammals in  #3 ;return number of #4 for each #3 ;return #3 where #5 is  equal to one ;return number of #6 ;return if  #7 is  at least one
['select', 'filter', 'project', 'project', 'group', 'comparative', 'aggregate', 'boolean']