If each image features clownfish swimming in front of anemone tendrils, and no image contains more than four clownfish.
return clownfish ;return anemone tendrils ;return #1 swimming in  front of #2 ;return images of #3 ;return images ;return number of  #4 ;return number of  #5 ;return if  #6 is equal to  #7 ;return #1 in  #5 ;return number of  #9 for each  #5 ;return #5 where  #10 is higher than four ;return number of  #11 ;return if  #12 is equal to  zero ;return if  both  #8 and #13 are true
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