question: Did M1 employ M2 and employ M0 's executive producer and editor
query: SELECT count(*) WHERE {
  ?x0 ns:film.editor.film M0 .
  ?x0 ns:film.producer.films_executive_produced M0 .
  M1 ns:business.employer.employees/ns:business.employment_tenure.person ?x0 .
  M1 ns:business.employer.employees/ns:business.employment_tenure.person M2
  }