Property talk:P11764

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Britannica Kids students level article ID
identifier of a students level (grades 6-8) article in Britannica Kids

Applicable "stated in" value	Britannica Kids students level (Q95023037)
Data type	External identifier
Domain	entity (Q35120)
Allowed values	\d{6}
Example	Taoism (Q9598) → 277266 Managua (Q3274) → 275653 Tour de France (Q33881) → 600659 boomerang (Q131536) → 273290 Alvin Ailey (Q449037) → 309729 Amphibia (Q10908) → 272842 Iowa people (Q1517496) → 327220 alphabet (Q9779) → 272820
Source	https://kids.britannica.com/students
Formatter URL	https://kids.britannica.com/students/article/$1
Related to country	United Kingdom (Q145) (See 326 others)
See also	Encyclopædia Britannica Online ID (P1417), Britannica Kids kids level article ID (P11762), Britannica Kids scholars level article ID (P11765)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other external identifier Items with no other statements 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/P11764 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 132 Main statement 124 93.9% of uses Qualifier 8 6.1% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

Format “\d{6}”: value must be formatted using this pattern (PCRE syntax). (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/P11764#Format, SPARQL

Scope is as main value (Q54828448), as reference (Q54828450): 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/P11764#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/P11764#Entity types

Single value: this property generally contains a single value. (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/P11764#Single value, SPARQL

Type “entity (Q35120)”: item must contain property “instance of (P31), subclass of (P279)” with classes “entity (Q35120)” or their subclasses (defined using subclass of (P279)). (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/P11764#Type Q35120, SPARQL

Instances only?

It seems strange to me that this property should be restricted to “instance of (P31)” with classes “entity (Q35120)”, rather than allowing subclasses. Example:chemical/biological warfare (Q118930816). Thoughts? PKM (talk) 00:24, 1 June 2023 (UTC)

Yes, but even if that is fixed, "entity" is the mother of all classes which means the check will always be true for any items having P31 or P279 claims. IMO delete that constraint. Infrastruktur (talk) 14:06, 1 June 2023 (UTC)

That would work for me. Any objections? PKM (talk) 00:44, 2 June 2023 (UTC)