question: Who was a French screenwriter that M2 and M3 were written by and M4 , M5 , and M6 were written by
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.writer .
  ?x0 a ns:people.person .
  ?x0 ns:film.writer.film M2 .
  ?x0 ns:film.writer.film M3 .
  ?x0 ns:film.writer.film M4 .
  ?x0 ns:film.writer.film M5 .
  ?x0 ns:film.writer.film M6 .
  ?x0 ns:people.person.nationality ns:m.0f8l9c
  }