If each image contains a single model, and left and right images contain models of the opposite sex [one image contains a male and the other contains a female].
return images ;return models in  #1 ;return number of  #2 for each  #1 ;return #1 where  #3 is equal to  one ;return number of  #4 ;return number of  #1 ;return if  #5 is equal to  #6 ;return the  left image  ;return the  right image  ;return model in  #8 ;return model in  #9 ;return sex of #10 ;return sex of #11 ;return if  #12 is the  opposite of #13 ;return if  both  #7 and   #14 are true
['select', 'project', 'group', 'comparative', 'aggregate', 'aggregate', 'boolean', 'select', 'select', 'project', 'project', 'project', 'project', 'boolean', 'boolean']