See 

Wikidata:Requests_for_comment/How_to_classify_items:_lots_of_specific_type_properties_or_a_few_generic_ones%3F#Subproperty_of

for a discussion of a 'subproperty' relation. where a property can have a statement that it is a 'subproperty' of another property and the query engine could search on a property, including all of it's subproperties.

Joe

On Mon, May 5, 2014 at 1:18 PM, Fredo Erxleben <fredo.erxleben@tu-dresden.de> wrote:

Hello all,

I am playing around with properties at the moment, especially filtering out a certain kind of properties.

So I wondered if it wouldn't be a nice thing, if properties were classified in some way.

Example: (Numbering is just for readability and does not hold any semantics)
P… is the placeholder for the actual property-Id, did not want to look them all up

1) Relations
1a) Mathematical relations
1b) Relations in human interaction
1b1) Social relation
1b1a) P… (is employee of)
1b1b) P… (is heir to)
1b2) Biological relation
1b2a) P… (brother of)
1b2a) P… (sister of)
…
2) External IDs
…

and so on, I think you get the idea.

Has something like this bees discussed before?

Cheers,
Fredo

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