Property talk:P3005

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valid in place
place where a statement is valid

Data type	Item
Domain	any claim (note: this should be moved to the property statements)
Allowed values	items denoting a place (note: this should be moved to the property statements)
Example	stadion (Q1645966) → Delphi (Q75459) Skyfall (Q4941) → United Kingdom (Q145)
See also	location (P276), applies to part (P518), electoral district (P768), applies to people (P6001), applies to jurisdiction (P1001)
Lists	Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Database reports/Constraint violations/P3005
Proposal discussion	Proposal discussion
Current uses	Total 55,208 Main statement 184 0.3% of uses Qualifier 54,987 99.6% of uses Reference 37 <0.1% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

Value type “geographical feature (Q618123), fictional location (Q3895768), outer space (Q4169), planet (Q634), vehicle (Q42889), state (Q7275), facility (Q13226383), workplace (Q628858), social space (Q4430275)”: This property should use items as value that contain property “instance of (P31), subclass of (P279)”. On these, the value for instance of (P31), subclass of (P279) should be an item that uses subclass of (P279) with value geographical feature (Q618123), fictional location (Q3895768), outer space (Q4169), planet (Q634), vehicle (Q42889), state (Q7275), facility (Q13226383), workplace (Q628858), social space (Q4430275) (or a subclass thereof). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). Known exceptions: Paris (Q90)
List of violations of this constraint: Database reports/Constraint violations/P3005#Value type Q618123, Q3895768, Q4169, Q634, Q42889, Q7275, Q13226383, Q628858, Q4430275, SPARQL

Scope is as qualifier (Q54828449): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P3005#Scope, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P3005#Entity types

This property is being used by: it:Template:Misure1877, it:Template:Lista di unità di misura italiane del 1877 Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

use with "conversion to SI unit"

Could you use just "conversion to standard unit"? Otherwise unit conversion for SI just gets too complicated on SPARQL.

Ideally, I think for units there should be separate item for each polis. I'm sure this property could be used in some other field as qualifier.
--- Jura 18:19, 30 July 2016 (UTC)

@Jura1: I can understand your opinion, but there are two problems: if we have for example four items for "stadion", what will stadion (Q1645966) become and where will we store sitelinks (in the "main" item, maybe)? --Epìdosis 19:31, 30 July 2016 (UTC)

It would be somehow like point (Q156389) and DTP point (Q21673990).

To see how conversion to SI unit (P2370) works, check the sample at Wikidata_talk:SPARQL_query_service/queries#Quantities.

If people use stadion (Q1645966) as unit of measure for a lenght in statement and you want to convert this, the statement would need to include a reference to the qualifier value as well, otherwise one couldn't determine which stadion it refers to.
--- Jura 12:58, 31 July 2016 (UTC)

@Jura1: OK. In my opinion you can divide the items where I used this property as qualifier. When you have finished you can list them here. Thank you, --Epìdosis 18:54, 31 July 2016 (UTC)

Ok. Will do.
--- Jura 07:11, 7 August 2016 (UTC)

Use with epithets

@Jura1: What's your opinion about an use like Gynaecothoenas (Q5625156)? --Epìdosis 11:52, 6 August 2016 (UTC) And what about Epidotes (Q5382860)? --Epìdosis 12:01, 6 August 2016 (UTC)

Hard to say. I'm a bit sceptical about using qualifiers (or references) on P31. If these are needed, I think it's generally a sign that another property should be used. Maybe indigenous to (P2341) could work here.
--- Jura 07:11, 7 August 2016 (UTC)

OK. @Jura1: I understand that you agree with me about of (P642) as qualifier; I think that no other qualifier but of (P642) and no reference should be used with instance of (P31) too. I like very much indigenous to (P2341), which I didn't know, but its constraints seem to be against such a use you have proposed here. --Epìdosis 12:12, 7 August 2016 (UTC)