Wikidata:Property proposal/topic's subcategory

topic's subcategory

Originally proposed at Wikidata:Property proposal/Creative work

   Not done

Description	a qualifier which lists subcategories under the scope of "topic's main category" (P:910)
Data type	Property
Domain	item
Allowed values	All "Category:Example" named items which come another main category
Example 1	topic's main category (P910) = Category:Filmi (Q8451903) -> topic's subcategory = Category:Filmi singers (Q55926182)
Example 2	topic's main category (P910) = Category:Filmi (Q8451903) -> topic's subcategory = Category:Filmi songs (Q55926183)
Example 3	topic's main category (P910) = Category:Filmi (Q8451903) -> topic's subcategory = Category:Filmi soundtracks (Q55926184)
Example 4	topic's main category (P910) = Category:Films (Q55321) -> topic's subcategory = Category:Directorial debut films (Q7711756)
Example 5	topic's main category (P910) = Category:Films (Q55321) -> topic's subcategory = Category:Reboot films (Q6307186)
Example 6	topic's main category (P910) = Category:Films (Q55321) -> topic's subcategory = Category:Fictional films (Q8448259)
Planned use	As written in the description.
Robot and gadget jobs	The task of this property can also be permformed by scripts (or bots).

Motivation

I had been maintaining category mainspace pages on WP recently and was wondering why they didn't have any property for topic's main category (P910) -> topic's subcategory type of statements in WD items? Therefore I've proposed it here to make WD more better. I hope it works, thankyou. Harsh Rathod Poke me! 13:59, 3 August 2018 (UTC)

Discussion

•  Comment @Harshrathod50: it's not clear which direction you are proposing for this? All your examples suggest a "subcategory of" property, i.e. a statement on the subcategory that points to its parent. I would  Support that - however the main body of the proposal seems to be looking for a link in the other direction? ArthurPSmith (talk) 17:45, 3 August 2018 (UTC)

Thanks for the input, I've resolved the confusion. Harsh Rathod Poke me! 04:34, 4 August 2018 (UTC)

•  Oppose. Pretty sure this has been rejected before. We're not duplicating local category structures here. --Yair rand (talk) 03:31, 7 August 2018 (UTC)

@Yair rand: Interesting, so why not mention that property which was previously proposed that resembles this one? Can I know why we can't duplicate category structures here on WD? Is there any discussion about this too? Harsh Rathod Poke me! 20:31, 7 August 2018 (UTC)

•  Oppose, we shouldn't duplicate the graph of categories and subcategories should be linked from more specific Wikidata entities when they exist. But thanks for your proposal! --abián 08:56, 12 August 2018 (UTC)

• marking as  Not done, no support − Pintoch (talk) 14:53, 7 November 2018 (UTC)