Quetions about cwm/N3

I've a couple of questions about the intended syntax and interpretation of N3:

(1) what is the keyword 'this' meant to mean?  I think I read somewhere 
that it's the enclosing formula.  In the absence of {...} constructs, that 
could be replaced by a URIref '<#>', I think.  Is there a convention for 
applying URIs to formulae?  (My software treats them as blank nodes, but 
the ':-' operator can be used to assign the formula to a labelled node.)

(2) is the character '-' intended to be allowed in QNames?  I thought not, 
but I've come across some cwm output that contains this character.

#g


-------------------
Graham Klyne
<GK@NineByNine.org>