question: If at least one wolf is standing in front of trees with its head raised in a howling pose.
#1 return wolves 
#2 return trees 
#3 return #1 standing in  front of #2 
#4 return heads of #3 
#5 return #3 where  #4 are raised in  a  howling pose 
#6 return number of  #5 
#7 return if  #6 is at least one