Hi Stas (and all),

Thanks - that query looks very much like what I was wondering about.
"Confirmed to be different" was intended as "we're sure they are two
different people, not just a Wikidata artifact that hasn't been merged
yet". Use of P1889 would seem a pretty good way to confirm that,
though as you say there aren't many yet.

The two Sanjays look like a fairly good example of a confident mismatch.

Andrew.

On 15 April 2016 at 19:21, Stas Malyshev <smalyshev@wikimedia.org> wrote:
> Hi!
>
>> I'm curious to know how many cases we have where two people share both
>> a name and a birthdate *but are confirmed to be different people*. I
>
> I'm not sure how you specify "confirmed to be different", but otherwise
> this query might do:
>
> http://tinyurl.com/jjpnhuo
>
> It shows each pair twice (because I'm lazy :) and I have no idea if they
> are same person of different - short of explicit usage of P1889 which
> almost never happens I don't think there's a good generic way.
>
> One pair that seems to be different is:
>
> https://www.wikidata.org/wiki/Q644401
> https://www.wikidata.org/wiki/Q510034
>
> but short of manual examination I see no way to know one way or another.
> --
> Stas Malyshev
> smalyshev@wikimedia.org
>
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> Wikidata@lists.wikimedia.org
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--
- Andrew Gray
  andrew.gray@dunelm.org.uk

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