question: Which French film editor that M1 and M2 were executive produced by and M5 and M6 starred was M3 's employee
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.editor .
  ?x0 ns:film.actor.film/ns:film.performance.film M5 .
  ?x0 ns:film.actor.film/ns:film.performance.film M6 .
  ?x0 ns:film.producer.films_executive_produced M1 .
  ?x0 ns:film.producer.films_executive_produced M2 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M3 .
  ?x0 ns:people.person.nationality ns:m.0f8l9c
  }