question: If an image shows one dog, which is in a grassy area.
#1 return dogs 
#2 return area 
#3 return #2 that is  grassy 
#4 return #1 in  #3 
#5 return images of  #4 
#6 return number of #4 for each #5 
#7 return #5 where #6 is  equal to one 
#8 return number of #7 
#9 return if  #8 is  equal to one