Wikidata:Property proposal/event arguments and types

event arguments and types edit

event argument edit

Originally proposed at Wikidata:Property proposal/Generic

   Not done
Descriptionitem that plays a role in an event instance; used with a qualifier "argument type"
Data typeItem
Domainevent instances
Example 1assassination of Abraham Lincoln (Q1025404)event argumentAbraham Lincoln (Q91)argument typeQ_assassinated_in_assassination
Example 2assassination of Abraham Lincoln (Q1025404)event argumentJohn Wilkes Booth (Q180914)argument typeQ_assassin_in_assassination
Example 3caning of Charles Sumner (Q5032419)event argumentCharles Sumner (Q1066198)argument typeQ_victim_in_caning
Example 4caning of Charles Sumner (Q5032419)event argumentPreston Brooks (Q1590822)argument typeQ_hitter_in_caning
Planned useslowly introduce these to items for individual event instances
See alsoparticipant (P710), participant in (P1344), participating team (P1923)

argument type edit

Originally proposed at Wikidata:Property proposal/Generic

   Not done
Descriptionqualifier for "event argument" specifying the event role item that describes the role
Data typeItem
Allowed valuesevent roles
Example 1assassination of Abraham Lincoln (Q1025404)event argumentAbraham Lincoln (Q91)argument typeQ_assassinated_in_assassination
Example 2assassination of Abraham Lincoln (Q1025404)event argumentJohn Wilkes Booth (Q180914)argument typeQ_assassin_in_assassination
Example 3caning of Charles Sumner (Q5032419)event argumentCharles Sumner (Q1066198)argument typeQ_victim_in_caning
Example 4caning of Charles Sumner (Q5032419)event argumentPreston Brooks (Q1590822)argument typeQ_hitter_in_caning
Planned useslowly introduce these to items for individual event instances
See alsoparticipant (P710), participant in (P1344), participating team (P1923)

Motivation edit

See our property proposal “event role” and project Events and Role Frames.

Note the distinction between “event role” and "event argument". The former applies to event classes (e.g., "assassination (Q3882219)") and points to an item that describes the role (e.g., "assassin in assassination"). The latter applies to specific event instances (e.g., "assassination of Abraham Lincoln (Q1025404)") and points to an item that plays the role in that event instance (e.g., "John Wilkes Booth (Q180914)"). While in the case of "assassination" property "practiced by (P3095)" could be used for the former and "perpetrator (P8031)" for the latter, other events use different properties for the roles or none at all. We are proposing a more general solution that applies to all events.

The selectional preference statements attached to an event role item (e.g., "assassin in assassination") describe the preferred types of items for the event argument in the event instances (e.g., "human (Q5)" for the assassin in the instances of assassinations).

These are two of the five proposed properties that should be considered together, in addition to "event role", "role in event", and "selectional preference".

Mahirtwofivesix (talk), on behalf of Anatole Gershman 22:05, 28 November 2023 (UTC)[reply]

Discussion edit

I looked at 'significant person' and 'object has role'- they seem very different from what we have in mind. Significant person seems to be exactly what it says, a way to highlight important personages. It only seems to apply to people. Object has role also seems to be designed for persons, and indicates professions or positions associated with occupations and tied to the significant person. Or at least, that is what I got out of the examples. I'll confess I don't think I really understand the definition of 'object has role.'
We are aiming for "semantic roles" for eventualities, for events, processes, state, many of which are due to actions being performed. The "semantic roles" are quite general purpose, and can be filled, depending on the type of event or action, by persons, animals, plants, birds, concrete artifacts, ideas or even other events, or sometimes by all of the above. They are a "meta-language" that facilitates the discussion of general properties and participants of types of eventualities. Having said that, the suggestion by Swpb of "participant" is quite intriguing. That actually seems to fit pretty well and is very close to what we had in mind. My only concern here is that the definition seems to limit it to persons and organizations, whereas we would really like something broader, as I indicated above. How much havoc would be wreaked by broadening the definition a bit to include concrete and abstract objects as well? Is that doable? MarthaStonePalmer (talk) 03:46, 22 February 2024 (UTC)[reply]
  • Reply First, I'd like to thank you for suggesting "argument role" instead of "argument type". I agree, it is better. The redundancy point needs a discussion. The proposed "event role" property semantics may indeed overlap with the semantics of some existing properties (I would not call it "step on"). But the existing properties are often event-specific and convey specific information, e.g., participant (P710) is defined as a person or a group of people participating in an event, target (P533) is defined as a target of an attack or military operation. The propose "event role" property does not carry any semantics besides pointing to an item that describes the role. The specific semantics of the role are described in the event role item rather than in the property. Wikidata has many properties with overlapping but not identical semantics. In my opinion, should not be a problem. --Anatole Gershman (talk) 23:31, 13 December 2023 (UTC)[reply]