question: Was M4 's editor and cinematographer employed by M0 and M1 and employed by M2 and M3
query: SELECT count(*) WHERE {
  ?x0 ns:film.cinematographer.film M4 .
  ?x0 ns:film.editor.film M4 .
  ?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.employment_history/ns:business.employment_tenure.company M2 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M3
  }