question: If there are brown and green acorns.
#1 return acorns 
#2 return #1 that are brown 
#3 return #1 that are green 
#4 return number of  #2 
#5 return number of  #3 
#6 return if  #4 is at least one 
#7 return if  #5 is at least one 
#8 return if  both  #6 and #7 are true