Lucas_Werkmeister_WMDE added a comment.

SELECT * WHERE
{
  ?item wdt:P594 ?ensembl .
  FILTER NOT EXISTS {
    ?item p:P594 ?statement .
    ?statement ps:P594 ?ensembl . 
  }
}

In general, this query is satisfiable without any bugs, since wdt: only selects *truthy* statements. Add ?statement a wikibase:BestRank to make the full-statement version more equivalent to the truthy-triple version.


TASK DETAIL
https://phabricator.wikimedia.org/T207675

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To: Lucas_Werkmeister_WMDE
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