question: Was a film editor that M2 starred , was written by , and was executive produced by M0
query: SELECT count(*) WHERE {
  M0 a ns:film.editor .
  M0 ns:film.actor.film/ns:film.performance.film M2 .
  M0 ns:film.producer.films_executive_produced M2 .
  M0 ns:film.writer.film M2
  }