question: If one of the images shows one jellyfish with a fish inside and nothing else.
#1 return jellyfish 
#2 return fish 
#3 return #1 with  #2 inside 
#4 return images of  #3 
#5 return number of #3 for each #4 
#6 return #4 where #5 is  equal to one  
#7 return number of #6 
#8 return if  #7 is  equal to one