** xml and n3
   :PROPERTIES:
   :DATE:     2009-11-20
   :END:

introduce org-babel to =xml= and =n3=
#+begin_src emacs-lisp :results silent
  (add-to-list 'org-babel-interpreters "xml")
  (add-to-list 'org-babel-interpreters "n3")
#+end_src

inform org-babel-tangle of their existence and file extensions
#+begin_src emacs-lisp :results silent
  (add-to-list 'org-babel-tangle-langs '("xml" "xml"))
  (add-to-list 'org-babel-tangle-langs '("n3" "n3"))
#+end_src

#+begin_src xml :tangle example
  <first>
  </first>
#+end_src

#+begin_src n3 :tangle example
  n3 stuff
#+end_src