If the left image contains a single jellyfish, which has an upright mushroom-shaped cap that trails stringy and ruffly tentacles beneath it.
return left image ;return jellyfish in  #1 ;return number of  #2 ;return if  #3 is equal to  one ;return cap ;return tentacles of #2 ;return #6 that are stringy ;return #7 that are ruffly ;return #5 that is upright ;return #5 that is mushroom-shaped ;return #10 that trails #8 beneath it ;return if  #2 has #11 ;return if  both  #4 and #12
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