question: Was a French person that M2 was edited by and starred a cinematographer
query: SELECT count(*) WHERE {
  ?x0 a ns:film.cinematographer .
  ?x0 a ns:people.person .
  ?x0 ns:film.actor.film/ns:film.performance.film M2 .
  ?x0 ns:film.editor.film M2 .
  ?x0 ns:people.person.nationality ns:m.0f8l9c
  }