[O] I have a problem about "Multi-state workflows "

[Helong Feng]

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?