I read the orgguide.pdf when I read page 11,I have a problem.
I set some TODO keywords such as
(setq org-todo-keywords
'((sequence "TODO(t)" "|" "DONE(d)")
(sequence "REPORT(r)" "BUG(b)" "KNOWNCAUSE(k)" "|" "FIXED(f)")
(sequence "|" "CANCELED(c)")))

and it works,but I am confused about the following:
To define TODO keywords that are valid only in a single file, use the
following text
anywhere in the file.
#+TODO: TODO(t) | DONE(d)
#+TODO: REPORT(r) BUG(b) KNOWNCAUSE(k) | FIXED(f)
#+TODO: | CANCELED(c)
but it does not work,can someone help me?