question: If the boat is completely in the water in one image and sitting on the edge of the water in the other image.
#1 return one image  
#2 return boat in   #1 
#3 return water in   #1 
#4 return if  #2 is completely in   #3 
#5 return other image  
#6 return boat in   #5 
#7 return water in   #5 
#8 return edge of #7 
#9 return if  #6 is sitting on #8 
#10 return if  both  #4 and #9 are true