The code is at /home/ai/block.world.lsp
     Get into an editor on your account and load & save this program.

    (check to see that it loads and runs before you make any changes)

         Essentially this is a lab and a homework rolled into one.
         Answer questions in Chapter 21. #3, #4, #5, #6
       

   Write a function to give a text display all the slots for a
 given instance  in a concise, white-spaced manner.
Use this function to display all of the objects.
      

          Write a visual display using arrays. It would look like:
               b1 b2 b3  b4 w5 b6  w7 s8
           and after (put-on b1 b2) it would look like:
                   b1 
                   b2 b3  b4 w5 b6  w7 s8
           and after  (put-on b4 b3) it would look like:
                      b4
                   b1
                   b2 b3     w5 b6  w7 s8