question: Was M3 's French actor employed by M0 and M1
query: SELECT count(*) WHERE {
  ?x0 ns:film.actor.film/ns:film.performance.character M3 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M0 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
  ?x0 ns:people.person.nationality ns:m.0f8l9c
  }