question: If one of the bookshelves has wooden cabinet doors at the bottom.
#1 return bookshelves 
#2 return bottom of #1 
#3 return cabinet doors 
#4 return #3 that are wooden 
#5 return #1 where  #2 has #4 
#6 return number of  #5 
#7 return if  #6 is equal to  one