Property talk:P248

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stated in
to be used in the references field to refer to the information source in which a claim is made; for qualifiers use P805
Data typeItem
DomainAny item statement (note: this should be moved to the property statements)
Allowed valuesAny item representing a source (note: this should be moved to the property statements)
Usage notesUsing this property indicates that the information is contained in the entity (a book, an article, etc) that's represented by the linked information source. If you want to state that the information comes from the information contained in another Wikidata item, use P3452.
ExamplePolydore Vergil (Q741149) says Richard III of England (Q133028) was killed at Bosworth Field (note: this information should be moved to a property statement; use property Wikidata property example (P1855) or Wikidata property example for properties (P2271))
Format and edit filter validationAbuse filter #54
Robot and gadget jobsDeltaBot does the following jobs:
See alsostatement disputed by (P1310), statement is subject of (P805), imported from Wikimedia project (P143), inferred from (P3452)
  • Items with no other statements
  • Items with novalue claims
  • Items with unknown value claims
  • Usage history
  • Database reports/Complex constraint violations/P248
  • Database reports/Constraint violations/P248
  • Proposal discussionProperty proposal/Archive/6#P248
    Current uses26,596,546
    [create] Create a translatable help page (preferably in English) for this property to be included here
    Scope is: the property must be used by specified way only (Help)
    Exceptions are possible as rare values may exist.
    List of this constraint violations: Database reports/Constraint violations/P248#scope, SPARQL (new)
    Value type “information (Q11028), work (Q386724): This property should use items as value that contain property “instance of (P31)”. On these, the value for instance of (P31) should be an item that uses subclass of (P279) with value information (Q11028), work (Q386724) (or a subclass thereof). (Help)
    Exceptions are possible as rare values may exist.
    List of this constraint violations: Database reports/Constraint violations/P248#Value type Q11028, Q386724, SPARQL, SPARQL (new)
    Pictogram voting comment.svg Value shouldn't be an item for a date
    use retrieved (P813) or publication date (P577) instead (Help)
    Violations query: SELECT ?item ?itemLabel ?p ?value ?valueLabel { ?item ?p [ prov:wasDerivedFrom / pr:P248 ?value ] . ?value wdt:P31 wd:Q47150325 . SERVICE wikibase:label { bd:serviceParam wikibase:language "en" } } LIMIT 100
    List of this constraint violations: Database reports/Complex constraint violations/P248#Value shouldn't be an item for a date


    How would one use URLs with this property? Does it make sense to create an item for a web page merely to use it for sourcing a statement? Or would a better solution be to have another property identical to this one except that its data type is string? Or if a URL data type is planned to be added, is it best to wait until it's available? Silver hr (talk) 23:27, 10 March 2013 (UTC)

    Yes, the way we will use source is still rather unclear. Most webpages would not be acceptable items under wd:Notability, but in most cases, they would not be very good sources either. I think one possibility will be: add the website as the property value (when it is notable enough to be an item), and the exact URL as a qualifier. --Zolo (talk) 07:24, 11 March 2013 (UTC)
    I think there are legitimate cases for sourcing with webpages. I can show you an example. In Q6153452, there is a statement that the owner is Wyndham Worldwide. I think a source of sufficient authority for this statement is Wyndham's website, but I'm not sure how much sense it makes for it to be an item. If I'm interpreting the m:Wikidata/Data model correctly, there should be an IRI datatype which could, when implemented, be used in a source property, right? Silver hr (talk) 15:25, 11 March 2013 (UTC)
    Yes, it seems likely that we will need a differnt datatype for such cases, and an IRI datatype is foressen. Another possibility is that we wil not use this property at all, I really dont know. --Zolo (talk) 16:55, 11 March 2013 (UTC)

    merge this property with Property:P92[edit]

    A discussion about merging this property with P92 (legally estahblished by) is running there Snipre (talk) 09:31, 30 March 2013 (UTC)

    Receiving Warning on P248[edit]

    Today, I have started getting this error message when setting a reference 'stated in': "An error occurred while saving. Your changes could not be completed. Details Warning: Use imported from (P143) instead."

    First off, I think that it would be a mistake to deprecate this property (P248) in favor of P143. As far as I can tell, discussions for the last two years have clearly indicated that there is a semantical difference between those two. There are reasons for retaining both properties.

    Secondly, if P248 should be deprecated, where is the discussion around this? At least there should have been a reference to such a discussion from this Talk page.

    To top it all off, on Property talk:P143 (and Wikidata:Requests_for_comment/Sourcing_requirements_for_bots) there's previously been discussions regarding deprecating P143 (not P248).

    So I really see no valid reason for the error message that I am getting today. At the very least, this should have been discussed thoroughly (and if it has been, it should have been referenced here). Fred Johansen (talk) 13:02, 1 February 2015 (UTC)

    I have also seen the message on occasions, then spent a good hour trying to find a latest guide and failing. To me, I feel that P143 (imported) is for bots and P248 (stated) is for humans. P143 has been blindly copied, P248 has some thought behind it. Periglio (talk) 02:02, 3 February 2015 (UTC)