question: If in at least one image there is a single leopard whose facing is left forward.
#1 return leopards 
#2 return facing of #1 
#3 return #1 where  #2 is left forward 
#4 return images 
#5 return the  number of  #3 for each  #4 
#6 return #4 where  #5 is equal to  one 
#7 return the  number of  #6 
#8 return if  #7 is at least one