From my understanding RDF does not contain "edges", but only contain
triples and we should stick to the term of "embedded triples" instead of
edges for RDF Star
I'm pretty sure this section will tackle your issue meaning you need
additional nodes to model different occurrences of the same "edge":
https://w3c.github.io/rdf-star/cg-spec/editors_draft.html#occurrences
To cite:
According to the definitions above, an RDF-star triple
<https://w3c.github.io/rdf-star/cg-spec/editors_draft.html#dfn-triple>
is an abstract entity whose identity is entirely defined by its
subject, predicate, and object. Conversely, given three RDF-star terms
<https://w3c.github.io/rdf-star/cg-spec/editors_draft.html#dfn-rdf-star-terms>
s, p, and o, there is exactly and only one RDF-star triple
<https://w3c.github.io/rdf-star/cg-spec/editors_draft.html#dfn-triple>
with subject s, predicate p, and object o. This unique triple (s, p,
o) can be embedded
<https://w3c.github.io/rdf-star/cg-spec/editors_draft.html#dfn-embedded>
as the subject or object of multiple other triples, but must be
assumed to represent the /same thing/ everywhere it occurs, just like
the same IRI <https://www.w3.org/TR/rdf11-concepts/#dfn-iri> p is
assumed to represent the same thing everywhere it occurs.
Maybe this also answers your question:
:alice :lives :NYC {| :from 2000; :to 2002 |}
is equivalent to
:alice :lives :NYC .
<< :alice :lives :NYC >> :from 2000 ;
:to 2002 .
and indeed then
:alice :lives :NYC {| :from 2010; :to 2020 |}
is same as adding
:alice :lives :NYC .
<< :alice :lives :NYC >> :from 2010 ;
:to 2020 .
so in the end you would have
:alice :lives :NYC .
<< :alice :lives :NYC >> :from 2000 ;
:to 2002 ;
:from 2010 ;
:to 2020 .
And this is not what you want, thus, you need some additional nodes and
triples.
But probably Andy or others know better than me. I'm still learning.
On 19.07.21 09:06, Laura Morales wrote:
In RDF*, would these two be considered different edges or one single edge?
:alice :lives :NYC {| :from 2000; :to 2002 |}
:alice :lives :NYC {| :from 2010; :to 2020 |}
