query: #title: 46 CE sans date de fin
  # Complex constraint from [[Property talk:P1307]]
  # il devrait y avoir 46 membres
  SELECT (wd:Q5 as ?item) (COUNT(DISTINCT ?p) as ?ct) (?ct=46 as ?ok)
  {
      ?p p:P39 ?st1 .
      ?st1 ps:P39 wd:Q18510613 .
      ?st1 pq:P580 ?a1 .
      FILTER NOT EXISTS  { ?st1 pq:P582 ?z1 }  
  }
  GROUP BY ?item