Re: OnAgainOffAgain relations - beyond celeb marriage: Org membership

On 12/10/21 5:32 AM, Fabio Vitali wrote:
> Or: Grover Cleveland was the only person to have been elected to two non-consecutive terms as the President of the United States, first 1885-1889 and then 1893-1897.
>
> https://www.whitehouse.gov/about-the-white-house/presidents/grover-cleveland/#:~:text=The%20first%20Democrat%20elected%20after,1889%20and%201893%2D1897).
>
> Ciao
>
> Fabio

Hi Fabio,

Which can be expressed as.

## Turtle Start ##

## Tenured Presidency

@prefix : <#> .
@prefix schema: <http://schema.org/> .
@prefix dbpedia: <http://dbpedia.org/resource/> .

[
    a :TenuredOfficeEvent ;
    schema:name "Presidency of the United States"@en ;
    :hasTermStartYear "1885"^^xsd:gYear ;
    :hasTermEndYear "1889"^^xsd:gYear ;
    :hasOfficer dbpedia:Grover_Cleveland
] schema:author [
                      a schema:Person;
                      schema:worksFor <https://www.whitehouse.gov/#this>
                  ] ;
   schema:publisher <https://www.whitehouse.gov/#this>  .

[
    a :TenuredOfficeEvent ;
    schema:name "Presidency of the United States"@en ;
    :hasTermStartYear "1893"^^xsd:gYear ;
    :hasTermEndYear "1897"^^xsd:gYear ;
    :hasOfficer dbpedia:Grover_Cleveland
] schema:author [
                      a schema:Person;
                      schema:worksFor <https://www.whitehouse.gov/#this>
                  ] ;
   schema:publisher <https://www.whitehouse.gov/#this>  .

## Turtle End ##

Key point:

No reification required, courtesy of RDF's fundamental essence :)

Kingsley

>
>
>
>> On 9 Dec 2021, at 22:48, Cox, Simon (L&W, Clayton) <Simon.Cox@csiro.au> wrote:
>>
>> Captain of the bowls club is another example.
>>
>> (I was in one of these the other day admiring the wooden honour boards – the same names come up repeatedly but not necessary sequentially.)
>>
>>   
>>
>> From: Dan Brickley <danbri@google.com>
>> Sent: Thursday, 9 December, 2021 22:57
>> To: public-rdf-star@w3.org
>> Subject: OnAgainOffAgain relations - beyond celeb marriage: Org membership
>>
>>   
>>
>>   
>>
>> The celebrity re-marriage example is interesting and real, but may look a bit artificial or cornercase. A similarly structured situation is much more common - membership of organizations.
>>
>>   
>>
>> For example one organization being a member of another.
>>
>>   
>>
>> https://www.wikidata.org/wiki/Q51698517 is the International Fact Checking Network (IFCN). It has a notion of membership grounded in review of members w.r.t. their official principles.
>>
>>   
>>
>> Verified signatories are e.g. https://www.wikidata.org/wiki/Q30325238 (Full Fact). There are some organizations such as Snopes (https://www.wikidata.org/wiki/Q2287154) who were once members (verified signatories) but who are not currently.
>>
>>   
>>
>> Wikidata uses annotations on a https://www.wikidata.org/wiki/Property:P463 edge between IFCN and Snopes to give start/end times (
>>
>> 15 April 2017, 5 June 2019). It also points to evidence/source document.
>>
>>   
>>
>> As far as I know Snopes have only been members once, but if they were to rejoin it seems Wikidata could accomodate the task of representing this.
>>
>>   
>>
>> Until I learn a better name for it that isn't too grandiose, I am calling these "on again, off again" relationships, in honour of the celebrity marriage/divorce usecase.
>>
>>   
>>
>> Dan
>>
>>   
>>
>> p.s. another example, not quite notable enough for Wikidata to record:
>>
>> I (https://www.wikidata.org/entity/Q56641640) have twice been a member of https://www.wikidata.org/wiki/Q7552326 (AISB - Society for the Study of Artificial Intelligence and Simulation of Behaviour).  But then I have multiple times lived in the U.K., or been in various restaurants; how do we scope RDF-Star's applicability? Which of these are reasonable places it could be used for time-scoped relationships?
>>
>>   
>>

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