Which documents to start with?

[Thomas Gagne <tgagne@ix.netcom.com>]

I've visited http://www.ebxml.org and have always ended-up wondering where the
specifications for the actual message contents are, and if there's any sample
data I can try parsing.  There seems to be a lot of documentation but I'm
having trouble finding what I need to either read and understand ebXML or
create ebXML messages.

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.tom