query: PREFIX schema: <http://schema.org/>
  
  #defaultView:ImageGrid
  #Female authors speaking French who died 70 years ago
  SELECT ?author ?authorLabel ?signature WHERE {
    ?author wdt:P21 wd:Q6581072.
    ?author wdt:P106 wd:Q36180.
    ?author wdt:P1412 wd:Q150.
    ?author wdt:P570 ?died.
    ?author wdt:P109 ?signature.
    OPTIONAL { ?wikisourcePage schema:about ?author. }
    SERVICE wikibase:label { bd:serviceParam wikibase:language "fr". }
  }
  GROUP BY ?author ?authorLabel ?signature