Question: When did Paul Éluard use the pseudonym "Didier Desroches"?
Paraphrase: When was the pseudonym "Didier Desroches" was used by Paul Eluard?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q152176 p:P742 ?s . ?s ps:P742 ?x filter(contains(?x , 'Didier Desroches')) . ?s pq:P31 ?value}