((output
  (((f.ml (1 0) (1 11))
    (2
     (label
      ((root (f.ml (page f.ml) 00000000000000000000000000000000) f.ml)
       (label foo-bar)))
     (((f.ml (1 3) (1 6)) (word foo)) ((f.ml (1 6) (1 7)) space)
      ((f.ml (1 7) (1 10)) (word bar)))))))
 (warnings ()))
