I've been aware of the very existence of TEI for less than a
week, so this may be a very na´ve question, but I cannot find
what, precisely, is to be done with the word "or" with respect
to the titlePart tag. e.g.,
<titlePart type="main">H.M.S. Pinafore</titlePart>
????? or ?????
<titlePart type="alt">The Lass that Loved a Sailor</titlePart>
In fact, I'm not altogether certain that I'm using "alt" for
its intended purpose.
John W. Kennedy
(Working from my laptop)