question: Find the market shares and names of furnitures which no any company is producing in our records.
#1 return furnitures 
#2 return companies of #1 
#3 return number of  #2 for each #1 
#4 return #1 where #3 is zero 
#5 return market shares of #4 
#6 return names of #4 
#7 return #6 ,  #5