question: If one image includes a pelican and a smaller seabird perched on some part of a wooden pier.
#1 return pelican 
#2 return seabird 
#3 return #2 that is smaller than #1 
#4 return pier 
#5 return #4 that is wooden 
#6 return part of #5 
#7 return #3 perched on #6 
#8 return #1 , #7 
#9 return if  #8 is in  one image