let's allow the same terms everywhere, esp in triple patterns

w.r.t.


The set of triple patterns is
    (RDF-U union RDF-B union V) x (RDF-U union V) x (RDF-T union V)

  http://www.w3.org/2001/sw/DataAccess/rq23/
  $Revision: 1.137 $

Let's make that
    (RDF-T union V) x (RDF-T union V) x (RDF-T union V)

True, literal subjects and bnode predicates won't match any graphs
made from RDF/XML documents, but the RDF Core WG
 "noted that it is aware of no reason why literals should not
  be subjects and a future WG with a less restrictive charter may
  extend the syntaxes to allow literals as the subjects of statements."
   -- http://www.w3.org/2000/03/rdf-tracking/#rdfms-literalsubjects


-- 
Dan Connolly, W3C http://www.w3.org/People/Connolly/
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