Before I had a difficult time understanding https://www.mediawiki.org/wiki/Wikibase/Indexing/RDF_Dump_Format, but with that full example of https://www.wikidata.org/wiki/Special:EntityData/Q84.ttl in front of me, a lot of the RDF Dump Format page is now easier for me to understand.
New question: when I see that https://www.wikidata.org/wiki/Special:EntityData says "This page provides a linked data interface to entity values", can you tell me what "entity" means in the context of Wikidata? If I was going to refer to something that can be identified with a URI and described by triples in which it is the subject, I would just use the term "resource" as described at https://www.w3.org/TR/rdf11-concepts/#resources-and-statements (and remembering what "RDF" stands for!) so I'm guessing that "entity" means something a little more specific than that here.
Thanks,
Bob
On 03/18/2017 05:27 PM, Daniel Kinzler wrote:
Am 18.03.2017 um 21:27 schrieb Bob DuCharme:
Thanks Daniel!
How do I find a full statement representation? For example, what would the full statement representation be for a triple like {wd:Q64 wdt:P1376 wd:Q183}?
The full representation of the statement in this case is:
wds:Q64-43CCD3D6-F52E-4742-B0E3-BCA671B69D2C a wikibase:Statement, wikibase:BestRank ; wikibase:rank wikibase:PreferredRank ; ps:P1376 wd:Q183 ; prov:wasDerivedFrom wdref:ba76a7c0f885fa85b10368696ab4ac89680aa073 .
wdref:ba76a7c0f885fa85b10368696ab4ac89680aa073 a wikibase:Reference ; pr:P248 wd:Q451546 ; pr:P958 "Artikel 2 (1)" .
This RDF representation can be found at https://www.wikidata.org/wiki/Special:EntityData/Q64.ttl. Content negotiation will take you there from the canonical URI, https://www.wikidata.org/entity/Q64.ttl
In addition to the actual value, the RDF above also give the rank, and a source reference (nameley, the re-unification treaty).
This statement doesn't currently have a qualifier - it should have at least one, stating since when Berlin is the Capital of Germany. That qualifier would be represented as:
wds:Q64-43CCD3D6-F52E-4742-B0E3-BCA671B69D2C pq:P580 "1990-10-03T00:00:00Z"^^xsd:dateTime ;
The Statement ID, Q64$43CCD3D6-F52E-4742-B0E3-BCA671B69D2C, can be found in the HTML source of the page, encoded as a CSS class. These IDs are not exposed nicely anywhere. But usually, one would look at the RDF representation right away, or at least got from HTML to *all* the RDF.
HTH -- daniel