The IRI for a Wikidata item looks like http://www.wikidata.org/entity/Q221653 (for Utrecht University). If Wikidata items are used as term, then the profile should use the namespace http://www.wikidata.org/entity/, which Wikidata itself links to the prefix wd.
I am not sure how the property namespace is intended to use, but commonly Wikidata properties have an associated Wikidata item linked to is. For example, the property http://www.wikidata.org/entity/P231 (or the owl:ObjectPropertyhttp://www.wikidata.org/prop/P231) has the matching item https://www.wikidata.org/entity/Q102507.
Currently, the profiles have:
https://github.com/ISA-tools/isa-api/blob/6a5a5302ee621c5d49368cc0aacde531953d36f4/isatools/resources/json-context/wdt/isa_material_attribute_wdt_context.jsonld#L4-L5
The IRI for a Wikidata item looks like
http://www.wikidata.org/entity/Q221653
(for Utrecht University). If Wikidata items are used as term, then the profile should use the namespacehttp://www.wikidata.org/entity/
, which Wikidata itself links to the prefixwd
.I am not sure how the property namespace is intended to use, but commonly Wikidata properties have an associated Wikidata item linked to is. For example, the property
http://www.wikidata.org/entity/P231
(or theowl:ObjectProperty
http://www.wikidata.org/prop/P231
) has the matching itemhttps://www.wikidata.org/entity/Q102507
.cc @andrawaag