If one image shows a single wolf carrying something in its mouth.
return wolves ;return mouth of  #1 ;return #1 carrying something in  #2 ;return images of  #3 ;return number of #3 for each #4 ;return #4 where #5 is  equal to one ;return number of #6 ;return if  #7 is  equal to one
['select', 'project', 'filter', 'project', 'group', 'comparative', 'aggregate', 'boolean']