On a couple of occasions it's been suggested that providing examples is 
a good way to illustrate issues. Below are a couple of examples in 
textual form, because I'm unsure how to code them as BIBFRAME. All URIs 
should work.

(1) We have several print copies of "The Maoris in the Great War" ( 
http://victoria.lconz.ac.nz/vwebv/holdingsInfo?bibId=174611 ). We also 
have a available in digital. The archival form of the digital version is 
in TEI/XML ( http://nzetc.victoria.ac.nz/tei-source/CowMaor.xml ) but 
it's also available as a set of browsable HTML pages ( 
http://nzetc.victoria.ac.nz/tm/scholarly/tei-CowMaor.html ) and as an 
ePub ( http://nzetc.victoria.ac.nz/downloads/CowMaor.epub ). All digital 
version are under a CC license ( 
http://creativecommons.org/licenses/by-sa/3.0/nz/ ). The print work is 
not.  How do we encode the relationships between these versions of the work?

(2) Periodically, someone reports a error in the OCR of the digital 
work, which results in us updating the TEI/XML and that flowing to the 
HTML and ePUB some time later (days / weeks). How do we represent the 
updated status of these?

(3) We'd quite like to put cataloguing information inside the ePUB when 
we build it (think cataloguing in publication, for ePUBs). What would 
that look like? [Note that for CiP, we can't use a hash of the ePUB as 
an identifier, since the hash would be inside the thing which the hash 
is constructed of.]

cheers
stuart