Why is OpenOffice.org help in contrib?

[Paul van der Vlis <paul@vandervlis.nl>]

Hello,

Why are the help-packages for OpenOffice.org 2 in contrib, and not in 
main?   I don't see dependencies for non-free software.

http://packages.debian.org/unstable/doc/openoffice.org-help-en-us

With regards,
Paul van der Vlis.