question: Was M2 executive produced by a employee of M0 and M1 , edited by M3 , M4 , and M5 , and edited by M6
query: SELECT count(*) WHERE {
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M0 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
  M2 ns:film.film.edited_by M3 .
  M2 ns:film.film.edited_by M4 .
  M2 ns:film.film.edited_by M5 .
  M2 ns:film.film.edited_by M6 .
  M2 ns:film.film.executive_produced_by ?x0
  }