On 08/26/2015 06:16 AM, Svavar Kjarrval wrote:
On mið 26.ágú 2015 11:45, Ole Palnatoke Andersen wrote:
I've just completed #100wikidays, and my 100th article was about a horse: https://www.wikidata.org/wiki/Q12003911 That horse is the grandfather of https://www.wikidata.org/wiki/Q20872428, but should I use the same properties as for humans?
We also have https://www.wikidata.org/wiki/Q12331109 and https://www.wikidata.org/wiki/Q12338810, who were father and son. Again: Do we have animal properties, or do we use the same as for humans?
P21 is a subclass of P31 with Q18608871 which indicates in machine readable interpretation that it is about the gender of people, yet the descriptions assume items can be associated with P21 to include gender of animals. Yeah, I can understand the confusion. :/
- Svavar Kjarrval
I don't think that P21 (https://www.wikidata.org/wiki/Property:P21, sex or gender) is a subclass of P31 (https://www.wikidata.org/wiki/Property:P31, instance of). Properties aren't subclasses in general.
Perhaps you meant to talk about https://www.wikidata.org/wiki/Property:P21 (sex or gender) being related via (https://www.wikidata.org/wiki/Property:P31 (instance of) to https://www.wikidata.org/wiki/Q18608871 (Wikidata property for items about people). This indicates that the property should only be used on people, even though the description of the property itself talks about its use on animals.
It appears that Wikidata is not very consistent internally.
peter