If each image contains exactly one canine-type animal, and the animals on the left and right have the same kind of fur markings.
return images ;return animals in  #1 ;return #2 that are canine-type ;return number of  #3 for each  #1 ;return #1 where  #4 is equal to  one ;return number of  #5 ;return number of  #1 ;return if  #6 is equal to  #7 ;return the  left image ;return the  right image ;return animal in  #9 ;return animal in  #10 ;return fur markings of #11 ;return fur markings of #12 ;return if  #13 are the  same as #14 ;return if  both  #8 and #15 are true
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