question: Did a cinematographer executive produce a film whose star and executive producer was employed by M2 and M3
query: SELECT count(*) WHERE {
  ?x0 a ns:film.cinematographer .
  ?x0 ns:film.producer.films_executive_produced ?x1 .
  ?x1 a ns:film.film .
  ?x1 ns:film.film.executive_produced_by ?x2 .
  ?x1 ns:film.film.starring/ns:film.performance.actor ?x2 .
  ?x2 ns:people.person.employment_history/ns:business.employment_tenure.company M2 .
  ?x2 ns:people.person.employment_history/ns:business.employment_tenure.company M3
  }