question: If the righthand image shows exactly one water buffalo, which faces the camera.
#1 return the  righthand image 
#2 return water buffaloes in  #1 
#3 return #2 that face the  camera 
#4 return number of  #2 
#5 return number of  #3 
#6 return if  #4 is equal to  one 
#7 return if  #5 is equal to  one 
#8 return if  both  #6 and #7 are true