Karl Dubost wrote:

[snip]

> So it will become an extensible mechanism.
> 
> <p sem="address">
> <l sem="person">Haruki Murakami</l>
> <l sem="street">Omote-Sando</l>
> <l sem="city">  Tokyo</l>
> </p>

Excellent, but why abuse <p> in this way; a paragraph is
a well-defined grammatical term, and an address is very
unlikely to meet the grammatical definition thereof.
Why not

> <div sem="address">
> <l sem="person">Haruki Murakami</l>
> <l sem="street">Omote-Sando</l>
> <l sem="city">  Tokyo</l>
> </div> 

???

Philip Taylor, RHBNC