question: Who was a French film editor that produced M3 and produced M4
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.editor .
  ?x0 a ns:people.person .
  ?x0 ns:film.producer.film|ns:film.production_company.films M3 .
  ?x0 ns:film.producer.film|ns:film.production_company.films M4 .
  ?x0 ns:people.person.nationality ns:m.0f8l9c
  }