query: #title: Statements without qualifiers
  # Complex constraint from [[Property talk:P6216]]
  # All statements require qualifiers to more precisly specify copyright status.
  SELECT DISTINCT ?item {
    ?item p:P6216 ?statement.
    ?statement ?p ?q.
    FILTER (strstarts(str(?p),"http://www.wikidata.org/prop/qualifier/") = false)
  }
  LIMIT 1000