RDF Issue rdfms-identity-of-statements from Brian McBride on 2002-03-11 (www-rdf-comments@w3.org from January to March 2002) (original) (raw)

, In

http://lists.w3.org/Archives/Public/www-rdf-interest/2000Sep/0032.html

you raised an issue which was captured in

http://www.w3.org/2000/03/rdf-tracking/#rdfms-identity-of-statements

as

[[[ There is a question whether or not there can be two different statements with the same subject, object and property. Most people seem to say "no". I have suggested that this should be allowed because it can be expressed in reified RDF statements and that there should be a 1:1 correspondence between what can be expressed in an RDF model and its reification. ]]]

As recorded in

http://lists.w3.org/Archives/Public/w3c-rdfcore-wg/2002Feb/0476.html

the RDFCore WG has resolved:

<stmt1> <rdf:type> <rdf:Statement> .
<stmt1> <rdf:subject> <subject> .
<stmt1> <rdf:predicate> <predicate> .
<stmt1> <rdf:object> <object> .

<stmt2> <rdf:type> <rdf:Statement> .
<stmt2> <rdf:subject> <subject> .
<stmt2> <rdf:predicate> <predicate> .
<stmt2> <rdf:object> <object> .

<stmt1> <property> <foo> .

does not entail:

<stmt2> <property> <foo> .

This is a formal way of saying that two reified statements with the same subject, predicate and object can be different resources.

Please could you respond to this message, copying www-rdf-comments@w3.org indicating whether this is an acceptable resolution of this issue.

Brian McBride RDFCore co-chair

Received on Monday, 11 March 2002 09:54:54 UTC