Hi,
I'm trying to get to grips with using Wikidata as a Linked Data
resource, and would welcome some guidance.
Using the SPARQL end-point [1], I submit a query which looks for people:
PREFIX ps: <http://www.wikidata.org/prop/statement/>
PREFIX wd: <http://www.wikidata.org/entity/>
describe ?s where {?s ps:P31 wd:Q5 .
} limit 100
The results give a set of wd:statement URLs (e.g. [2]), each of which
has the required 'P31 Q5' property and four others (wikibase:rank,
rdf:type and a couple of 'derived from' properties). So this looks like
a simple statement, which is in some sense a property of the person I am
looking for. I would then expect to refine my SPARQL query to pick up
the person about whom this statement was made, and thereby get access to
their other properties.
However, when I dereference the statement URL, I find that I have
magically arrived at the URL of the person themselves [3].
While this is all very clever, it leaves me at a loss as to how I can
access the properties of the person using SPARQL.
Thanks,
Richard
[1]
https://query.wikidata.org/
[2]
http://www.wikidata.org/entity/statement/q23-935f9100-47ca-f387-7946-45f9db…
[3]
https://www.wikidata.org/wiki/Q23 when accessed through the browser,
or
https://www.wikidata.org/wiki/Special:EntityData/q23 when accessed
through curl with a suitable Accept header
--
*Richard Light*