basic:
(laby_name_forward)
(laby_name_left)
(laby_name_right)
(laby_name_escape)

rocks:
(laby_name_take)
(laby_name_drop)

loop:
(while (= (laby_name_look) laby_name_Void)
  ...)

function:
(define (f)
  ...)

conditional:
(if (= (laby_name_look) laby_name_Web)
  (begin
    ...)
  (begin
   ...))
