question: What was executive produced and edited by M0 and M1
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.film.edited_by M0 .
  ?x0 ns:film.film.edited_by M1 .
  ?x0 ns:film.film.executive_produced_by M0 .
  ?x0 ns:film.film.executive_produced_by M1
  }