question: Did M1 employ a cinematographer , editor , and writer of M0 and employ M2 and M3
query: SELECT count(*) WHERE {
  ?x0 ns:film.cinematographer.film M0 .
  ?x0 ns:film.editor.film M0 .
  ?x0 ns:film.writer.film M0 .
  M1 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
  M1 ns:business.employer.employees/ns:business.employment_tenure.person M2 .
  M1 ns:business.employer.employees/ns:business.employment_tenure.person M3
  }