Property talk:P2478

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Railways Archive event ID
Event ID in the Railways Archive database

Description	Event ID in the Railways Archive database
Data type	External identifier
Domain	According to this template: occurrence (Q1190554) - specifically railway accidents and incidents (probably mainly signal passed at danger (Q2811650) and train wreck (Q1078765)) in the British Isles (UK, Ireland, Isle of Man, Channel Islands) or Channel Tunnel. According to statements in the property: occurrence (Q1190554) When possible, data should only be stored as statements
Allowed values	\d{1,5}
Example	accident at Parkside (Q20656933) → 1 Grayrigg derailment (Q1028014) → 6279
Format and edit filter validation	1 or more digits, the current maximum is 4 digits (9163) but numbering is sequential so 5 digits will be used in future.
Source	http://www.railwaysarchive.co.uk
Formatter URL	http://www.railwaysarchive.co.uk/eventsummary.php?eventID=$1
Related to country	United Kingdom (Q145) (See 327 others)
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/P2478 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 120 Main statement 118 98.3% of uses Qualifier 2 1.7% of uses
Search for values

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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/P2478#Single value, SPARQL

Distinct values: this property likely contains a value that is different from all other items. (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/P2478#Unique value, SPARQL (every item), SPARQL (by value)

Format “\d{1,5}”: 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/P2478#Format, SPARQL

Type “occurrence (Q1190554)”: item must contain property “instance of (P31)” with classes “occurrence (Q1190554)” 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/P2478#Type Q1190554, 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/P2478#Entity types

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/P2478#Scope, SPARQL