question: If there are just two beakers, and they are both on a dark background.
#1 return beakers 
#2 return backgrounds 
#3 return #2 that are  dark 
#4 return #1 that are  on #3 
#5 return number of #1 
#6 return number of #4 
#7 return If #5 is  equal to two 
#8 return If #6 is  equal to two 
#9 return If both  #7 and #8 are  true