"David Cuenca" <dacuetu(a)gmail.com> writes:
Jane, this info is in Wikipedia. For instance see:
https://en.wikipedia.org/wiki/Waltzes_(Chopin)
N. 17 was attributed to Chopin (Kobylańska and
others),
Chomiński says that claim is spurious. And that is just
one of many examples.
According to Wikidata principles we should collect both
statements and let the reader decide which source to believe.
I can enter Kobylańska's claim, but I have no way to enter
Chomiński's counter-claim.
I think it is important to be able to model that
information
because that is how sources act, they don't limit themselves
to make "certain" claims, they also make "uncertain" claims
or counter other claims (even if they don't offer better ones).
Since attributions in arts, history, composition and many other
field are uncertain, doubtful, questioned, or contradicted
without an alternative at significant rates - in the
10% magnitude if you go back in time a bit - we ought to have
them.
Contradictions are indeed a new type of statement, because they
have to refer to the staements they disclaim.
Purodha