question: If 1 vending machine is the traditional closed-face, single image, cover.
#1 return vending machines 
#2 return #1 that are traditional 
#3 return #2 that are closed-face 
#4 return cover of #3 
#5 return #3 where  #4 is a  single image 
#6 return number of  #5 
#7 return if  #6 is equal to  one