Jheald added a comment.

For example, here is a query <http://tinyurl.com/pql8ew7> to give break down 
the number of films by the number of values of cast member 
(https://phabricator.wikimedia.org/P161) that we have for them:

  PREFIX wikibase: <http://wikiba.se/ontology#>
  PREFIX wd: <http://www.wikidata.org/entity/> 
  PREFIX wdt: <http://www.wikidata.org/prop/direct/>
  PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
  
  SELECT ?nvals (COUNT(DISTINCT(?item)) AS ?count) WHERE {
    {
      SELECT ?item (COUNT(DISTINCT(?value)) AS ?nvals)
      WHERE {
          ?item wdt:P31/wdt:P279* wd:Q11424 .
          ?item wdt:P161 ?value
      } GROUP BY ?item
    }
  } GROUP BY ?nvals 
  ORDER BY ?nvals


TASK DETAIL
  https://phabricator.wikimedia.org/T120166

EMAIL PREFERENCES
  https://phabricator.wikimedia.org/settings/panel/emailpreferences/

To: Jheald
Cc: Jheald, daniel, Lydia_Pintscher, Aklapper, Christopher, StudiesWorld, 
jkroll, Smalyshev, Wikidata-bugs, Jdouglas, aude, Deskana, Manybubbles, 
JeroenDeDauw, Mbch331



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