question: What actor that M1 was written by and directed by was M2 's employee
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.actor .
  ?x0 ns:film.director.film M1 .
  ?x0 ns:film.writer.film M1 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M2
  }