query: #title: Check year
  # Complex constraint from [[Property talk:P4690]]
  #
  SELECT ?item ?value {
  	?item wdt:P4690 ?value.
      BIND (STR(?value) AS ?str).
      BIND (SUBSTR(?str, STRLEN(?str)-9, 4) AS ?year).
      BIND (xsd:integer(?year) AS ?int).
      BIND (xsd:integer(YEAR(NOW())) AS ?actualYear).
      FILTER(?int > ?actualYear)
  }