W3C home > Mailing lists > Public > w3c-rdfcore-wg@w3.org > May 2001

Re: action item on reification

From: <jos.deroo.jd@belgium.agfa.com>
Date: Fri, 25 May 2001 01:13:30 +0100
To: Graham.Klyne@Baltimore.com
Cc: w3c-rdfcore-wg@w3.org
Message-Id: <OFE983DBB4.71CF530A-ON41256A57.00011563@bayer-ag.com>

[...]

>    @prefix rdf: <http//www.w3.org/1999/02/22-rdf-syntax-ns#>.
>    @prefix a:   <http//description.org/schema/>.
>      [ a rdf:Bag ;
                   ^was a ]
>        rdf:_1 [ a rdf:Statement ;
>                 rdf:predicate  a:creator ;
>                 rdf:subject    <http//www.w3.org/Home/Lassila> ;
>                 rdf:object     "Ora Lassila" ] ;
>        rdf:_2 [ a rdf:Statement ;
>                 rdf:predicate  a:title ;
>                 rdf:subject    <http//www.w3.org/Home/Lassila> ;
>                 rdf:object     "Ora Lassila's home page" ] ] .
                                                             ^added

let's think about a USE of that bag of statements such as

  @prefix rdf: <http//www.w3.org/1999/02/22-rdf-syntax-ns#>.
  @prefix a:   <http//description.org/schema/>.
  {<http//www.w3.org/Home/Lassila> a:creator "Ora Lassila";
    a:title "Ora Lassila's home page"} :attrbutedTo "Ralph Swick".

[...]

>    @prefix rdf: <http//www.w3.org/1999/02/22-rdf-syntax-ns#>.
>    @prefix a:   <http//description.org/schema/>.
>    [ a rdf:Statement ;
>      rdf:predicate  a:creator ;
>      rdf:subject    <http//www.w3.org/Home/Lassila> ;
>      rdf:object     "Ora Lassila" ]
>        rdf:truth "0".

an alternative could be

  @prefix rdf: <http//www.w3.org/1999/02/22-rdf-syntax-ns#>.
  @prefix log: <http://www.w3.org/2000/10/swap/log#>.
  @prefix a:   <http//description.org/schema/>.
  {<http//www.w3.org/Home/Lassila> a:creator "Ora Lassila"} a log:Falsehood.

and there is no problem to express those
cases in an RDF/XML 1.0 compatible syntax
and the semantics are quite working

--
Jos De Roo, AGFA http://www.agfa.com/w3c/jdroo/
Received on Thursday, 24 May 2001 19:13:57 EDT

This archive was generated by hypermail pre-2.1.9 : Wednesday, 3 September 2003 09:35:51 EDT