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This page documents the recommended handling of statements using the property of (P642), which is set to be deprecated. To get involved in the larger effort to deprecate this property, see Wikidata:WikiProject Data Quality/Issues/P642/Deprecation work.
Usage notes (please read!)
[edit] | Warning: The tables on this page present the likely most appropriate handling for each use case; it is the editor's responsibility to make sure the suggested handling is actually appropriate on each statement. |
Identifying replacement properties
[edit]For any statement using of (P642):
1. First, identify the parent properties/classes of the statement property, main value, and qualifier value:
- Property is a sub-property of: Run this query, replacing "P1065" with the property ID.
- Item is a subclass of: Run this query, replacing "Q146" with the item ID.
- Item is an instance of: Run this query, replacing "Q146" with the item ID.
2. Next, identify matching use cases on this page:
- Given a statement of the form [item][main property][main value]
of (P642)[qualifier value], these tables assume, except where noted, that:
- 1. [main value] is either identical to, a subclass, or rarely, an instance of one or more of the listed classes (or their subclasses). (The word "exactly" means that subclasses/instances are excluded.)
- 2. [qualifier value] is an instance of one or more of the listed classes (or their subclasses).
- Given a statement of the form [item][main property][main value]
- Where any of the criteria (main property, main value, qualifier value) are unspecified, the use case applies to any value of those criteria.
- Some statements will match more than one use case. Check for all applicable use cases, and apply the most appropriate one(s) for the statement.
- The use cases below are not exhaustive; if your statement doesn't match any of the listed cases, please bring it to the Talk page, and mention any case you think could be expanded to cover your statement, or any property you think would be an appropriate replacement. In some cases, an appropriate property may not exist, and will need to be proposed.
3. Finally, make sure the recommended handling makes sense for the statement, and edit the statement to remove or replace of (P642).
- In some cases, the tables suggest a parent property such as creator (P170), with a link to a list of its sub-properties; review the list and use the most specific applicable property or properties.
When to replace a qualifier with a main statement
[edit]Generally, of (P642) should be replaced by another qualifier in the same position. However, the information expressed with of (P642) is sometimes applicable to the subject item itself, rather than just to a particular statement. This can occur when:
- 1. The statement being qualified is a basic membership statement (i.e. instance of (P31), subclass of (P279), part of (P361), or subject has role (P2868)); and
- 2. The qualification applies to all basic membership statements on the item; and
- 3. The replacement property is allowed as a main statement property.
If these are all true, it may be appropriate to use the replacement property as a main statement property, with the same value as the original qualifier, rather than (or in addition to) as a qualifier. For example:
Paso Terra (Q65093014)instance of (P31)restaurant (Q11707)
should be replaced with two statements:
Paso Terra (Q65093014)instance of (P31)restaurant (Q11707), and
Paso Terra (Q65093014)cuisine (P2012)seafood (Q192935).
When to remove a qualifier without replacing
[edit]When a qualifier presents information that is always true of the relationship between the statement value and the qualifier value, that information should be stated on one or both of those two items, rather than as a qualifier on other items. For example:
- The Star-Spangled Banner (Q44696)lyricist (P676)Francis Scott Key (Q320633)
of (P642)United States of America (Q30)
The fact that Key was a citizen of the United States is always true, irrespective of his authorship of the national anthem. So we would ensure that Francis Scott Key (Q320633) has the statement country of citizenship (P27)United States of America (Q30), then remove this qualifier from The Star-Spangled Banner (Q44696).
Doing mass cleanup
[edit]On items
[edit]Use cases by main value class
[edit]
Main value is a subclass of academic discipline
[edit]| Main value is a subclass of | Qualifier value is an instance of | Recommended replacement property | Status | Example |
|---|---|---|---|---|
| academic discipline (Q11862829) | country (Q6256) | Change main value to one more specific to the qualifier value, where such exists, e.g. history of Spain (Q7781), and remove the qualifier; otherwise, use qualifier country (P17) | cleared 2024-09-26 | |
| academic discipline (Q11862829) | any not covered above | Change main value to one more specific to the qualifier value, where such exists, e.g. history of Spain (Q7781), and remove the qualifier; otherwise, use qualifier facet of (P1269) |
Main value is a subclass of intellectual work or group of works
[edit]| Main value is a subclass of | Qualifier value is an instance of | Recommended replacement property | Status | Example |
|---|---|---|---|---|
| article (Q191067) | written work (Q47461344) | published in (P1433) | [ex] | |
| audiovisual work (Q2431196) | producer (Q47541952) | producer (P162) | ||
| audiovisual work (Q2431196) | production company (Q11396960) | production company (P272) | ||
| broadcasting program (Q11578774) | broadcaster (Q15265344) | original broadcaster (P449) | ||
| discography (Q273057) | performing artist (Q713200) performing arts group (Q105815710) |
performer (P175) | ||
| exactly erratum (Q1348305) | work (Q386724) | main subject (P921) | ||
| exactly theme music (Q1193470) | work (Q386724) | used by (P1535) | Cleared 2024-09-24 | |
| work (Q386724) group of works (Q17489659) |
media distributor (Q12540664) | distributed by (P750) | ||
| work (Q386724) group of works (Q17489659) |
human (Q5) or group of humans (Q16334295) not captured above |
creator (P170) or one of its sub-properties |
Main value is a subclass of geographic entity
[edit]| Main value is a subclass of | Qualifier value is an instance of | Recommended replacement property | Status | Example |
|---|---|---|---|---|
| restaurant (Q11707) | cuisine (Q1778821) | cuisine (P2012) | cleared 2024-09-24 | Paso Terra (Q65093014) |
| war cemetery (Q1707610) | armed conflict (Q350604) | conflict (P607) | cleared 2024-09-24 | Gaza War Cemetery (Q17511203) |
| Main value is a subclass of | Qualifier value is an instance of | Recommended replacement property | Status | Example |
|---|---|---|---|---|
| equipment (Q10273457) | human activity (Q61788060) | has use (P366) | ||
| product (Q2424752) | productive animal (Q1797813) | natural product of taxon (P1582) | ||
| product model (Q10929058) | product (Q2424752) | subclass of (P279) (main only) | ||
| product model (Q10929058) | organization (Q43229) | manufacturer (P176) developer (P178) creator (P170) |
||
| service (Q7406919) | organization (Q43229) | operator (P137) |
| Main value is a subclass of | Qualifier value is an instance of | Recommended replacement property | Status | Example |
|---|---|---|---|---|
| Exactly ordinal number (Q191780) | natural number (Q21199) | Replacement property to be identified | ||
| number of entities (Q614112) | any | is a number of (P11279) | Do not use, needs rescoping |
Main value is a subclass of occupation
[edit]Main value is a subclass of temporal entity
[edit]| Main value is a subclass of | Qualifier value is an instance of | Recommended replacement property | Status | Example |
|---|---|---|---|---|
| temporal entity (Q26907166) | temporal entity (Q26907166) BUT NOT month (Q5151) | part of (P361) | Scope needs validation | |
| temporal entity (Q26907166) | month (Q5151) | month of the year (P2922) | Scope needs validation |
Use cases by qualifier value class
[edit]Qualifier value is a person, group of people, or individual animal
[edit]| Main value is a subclass of | Qualifier value is an instance of | Recommended replacement property | Status | Example |
|---|---|---|---|---|
| academic degree (Q189533) | educational organization (Q5341295) | conferred by (P1027) | ||
| anatomical structure (Q4936952) | individual organism (Q110224119) | part of (P361) | ||
| anthroponym (Q10856962) TBD |
ethnic group (Q41710) human social group (Q874405) |
culture (P2596) | Scope to be determined | Kuhap (Q96650979) |
| flight number (Q133663), probably others |
operator (Q29933786) | operator (P137) | ||
| income (Q1527264) salary (Q194489) |
human (Q5) sometimes organization (Q43229) |
destination of transfer (P12694) |
Qualifier value is a place
[edit]Qualifier value is a taxon
[edit]Purview of Wikidata:WikiProject Taxonomy. Generally qualifying instance of (P31).
| Main value is exactly | Qualifier value is an instance of | Recommended replacement property | Status | Example |
|---|---|---|---|---|
| exactly synonym (Q1040689) | taxon (Q16521) | taxon synonym of (P12763) | Inocybe acutofulva (Q107800296)taxon synonym of (P12763)Inosperma acutofulvum (Q125928529) | |
| exactly protonym (Q10640897) | taxon (Q16521) for zoology | protonym of (P12765) | Spindasis dufranei (Q21324189)protonym of (P12765)Cigaritis dufranei (Q5119852) | |
| exactly basionym (Q810198) | taxon (Q16521) for botany | basionym of (P12766) | Agaricus gibbus (Q46795858)basionym of (P12766)Infundibulicybe gibba (Q765631) | |
| exactly replaced synonym (Q15709329) | taxon (Q16521) | replaced synonym of (P12764) | Ficaria verna (Q157557)replaced synonym of (P12764)Ranunculus ficaria (Q19796483) | |
| organisms known by a particular common name (Q55983715) | taxon (Q16521) | If qualifying P31: main statement union of (P2737) with taxa as values of list item (P11260) |
Other use cases not dependent on main property
[edit]Use cases by main property
[edit]Main property is creator (P170) or one of its sub-properties
[edit]| Qualifier value | Recommended replacement approach | Status | Example |
|---|---|---|---|
| creative work (Q17537576) or or one of its subclasses | applies to part (P518) (qualifier only) | ||
| instance of country (Q6256) | Ensure the item for the creator has a main statement country of citizenship (P27), then remove this qualifier | ||
| instance of creative work (Q17537576) | Ensure the item for the work has a main statement identifying its creator, then remove this qualifier |
Main property has a numeric value
[edit]| Statement property | Qualifier value | Recommended replacement property | Status | Example |
|---|---|---|---|---|
| mass (P2067) | birth mass (Q4128476) adult weight (Q78101716) |
object of statement has role (P3831) | ||
| number of matches played/races/starts (P1350) | recurring sporting event (Q18608583) | applies to part (P518) or part of (P361)? | Replacement to be determined | |
| port (P1641) | any | protocol (P2700) | Handling discussion | |
| precipitation height (P3036) | any | applies to part (P518) | Handling discussion | |
| sport number (P1618) | any | member of sports team (P54) | Handling discussion |
Main property is URL (P2699) or one of its sub-properties
[edit]| Qualifier value | Recommended replacement property | Status | Example |
|---|---|---|---|
| (identical to subject item) | remove qualifier | ||
| subclass of: information (Q11028) manifestation (Q286583) work (Q386724) but NOT of: architectural structure (Q811979) |
contains (P4330) | ||
| collection (Q2668072) database (Q8513) |
collection (P195) or content deliverer (P3274) | Need to separate cases Cleared 2024-09-25 |
|
| periodical (Q1002697) | published in (P1433) (as a main statement only) or content deliverer (P3274) | Need to separate cases Cleared 2024-09-25 |
|
| publishing company (Q2085381) | publisher (P123) | Cleared 2024-09-25 | |
| online publication (Q1714118) web service (Q193424) |
part of (P361) or publisher (P123) | Need to separate cases | |
| person or organization (Q106559804) not included above | publisher (P123), owned by (P127), or publisher (P123) | Need to separate cases | |
| any except above | object of statement has role (P3831), main subject (P921), or contains (P4330) | Need to separate cases |
Other use cases by main property
[edit]On properties
[edit]On lexemes
[edit]All TBD, see talk page.
See also
[edit]- User:Lucas Werkmeister/P642 considered harmful (essay that precipitated efforts to deprecate P642)