** tangling and variable resolution
  :PROPERTIES:
  :ID:       18b4f1be-bb1d-49bc-a651-c97406a35bdd
  :tangle:   yes
  :DATE:     2010-03-31
  :END:

#+name: A
#+begin_src emacs-lisp :eval no :expand yes :var id=(org-entry-get nil "ID" t) :var two=2
  (concat "This is the entry ID: " id)
#+end_src

#+name: A
: This is the entry ID: 18b4f1be-bb1d-49bc-a651-c97406a35bdd