Help:To Do

Properties

create inverse property label
- create inverse property label of [related property] with label "has value list" in properties.

New properties
- light source (candle, gas, Lime, (Open) arc, incandecent, halogen, Discharge)
- Check properties from Gerriets list
- specific property for logo
  - child of internal picture

clarify equipment - generic - type - unique piece
- we need to clarify the relation between unique piece, type and the higher levels of generic descriptions, but that is for later.
- But I think a division between generic types, that have a [subclass of] property, types that are not clearly defined, but could have a new property [type of], and the unique pieces that have only a [type of equipment] as qualifier in the [type of information] could make it easier to define visualisations?)

Maintenance query for properties:
- a query showing all properties used by a specific type of information to check and update the Help property pages.
- example https://www.wikidata.org/wiki/Wikidata:WikiProject_Performing_arts/Data_structure/Data_modelling_issues#List_of_properties_used_on_theatre_(venue)_items
Maintenance query for value lists:
- a query showing all values for a specific property with a connected value list, that are not in the value list.
Maintenance query for properties:
- a query showing all different values of a qualifier of specific property.
- for example [by] (P109) is only used as qualifier, but I can't see how often.