((output
  (((f.ml (1 0) (1 11))
    (paragraph
     (((f.ml (1 0) (1 11))
       (bold
        (((f.ml (1 3) (1 6)) (word foo)) ((f.ml (1 6) (1 7)) space)
         ((f.ml (1 7) (1 10)) (word bar))))))))))
 (warnings ()))
