query: prefix schema: <http://schema.org/>
  prefix prov: <http://www.w3.org/ns/prov#>
  PREFIX p: <http://www.wikidata.org/prop/>
  PREFIX ps: <http://www.wikidata.org/prop/statement/>
  
  SELECT ?entity ?article WHERE {
    ?entity p:P570 ?statement .
    ?statement ps:P570 ?value .
    FILTER ( ?value >= "2014-01-01T00:00:00Z"^^xsd:dateTime && ?value <= "2015-01-01T00:00:00Z"^^xsd:dateTime )
    OPTIONAL {
      ?statement prov:wasDerivedFrom ?ref
    }
    FILTER (!bound(?ref))
    ?article schema:about ?entity .
    ?article schema:inLanguage "fr" .
  } LIMIT 100