question: If the left and right images each contain one central, prominent stingray, and at least one image features a stingray with an all-over spotted pattern.
#1 return the  left image 
#2 return stingrays in  #1 
#3 return #2 that are central 
#4 return #3 that are prominent 
#5 return number of  #4 
#6 return if  #5 is equal to  one 
#7 return the  right image 
#8 return stingrays in  #7 
#9 return #8 that are central 
#10 return #9 that are prominent 
#11 return number of  #10 
#12 return if  #11 is equal to  one 
#13 return stingray 
#14 return #13 with an all-over spotted pattern 
#15 return if  #14 is in  at least one image 
#16 return if  both  #6 and #12 are true 
#17 return if  both  #16 and #15 are true