If each image has the same two muppets without any other muppets.
return muppets ;return #1 that are the  same ;return images ;return number of  #2 for each  #3 ;return number of  #1 for each  #3 ;return #3 where  #4 is equal to  two ;return #6 where  #5 is equal to  two ;return number of  #3 ;return number of  #7 ;return if  #8 is equal to  #9
['select', 'filter', 'select', 'group', 'group', 'comparative', 'comparative', 'aggregate', 'aggregate', 'boolean']